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Huang H, Mu Y, Li S. The biological function of Serpinb9 and Serpinb9-based therapy. Front Immunol 2024; 15:1422113. [PMID: 38966643 PMCID: PMC11222584 DOI: 10.3389/fimmu.2024.1422113] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/23/2024] [Accepted: 06/10/2024] [Indexed: 07/06/2024] Open
Abstract
Recent breakthroughs in discovering novel immune signaling pathways have revolutionized different disease treatments. SERPINB9 (Sb9), also known as Proteinase Inhibitor 9 (PI-9), is a well-known endogenous inhibitor of Granzyme B (GzmB). GzmB is a potent cytotoxic molecule secreted by cytotoxic T lymphocytes and natural killer cells, which plays a crucial role in inducing apoptosis in target cells during immune responses. Sb9 acts as a protective mechanism against the potentially harmful effects of GzmB within the cells of the immune system itself. On the other hand, overexpression of Sb9 is an important mechanism of immune evasion in diseases like cancers and viral infections. The intricate functions of Sb9 in different cell types represent a fine-tuned regulatory mechanism for preventing immunopathology, protection against autoimmune diseases, and the regulation of cell death, all of which are essential for maintaining health and responding effectively to disease challenges. Dysregulation of the Sb9 will disrupt human normal physiological condition, potentially leading to a range of diseases, including cancers, inflammatory conditions, viral infections or other pathological disorders. Deepening our understanding of the role of Sb9 will aid in the discovery of innovative and effective treatments for various medical conditions. Therefore, the objective of this review is to consolidate current knowledge regarding the biological role of Sb9. It aims to offer insights into its discovery, structure, functions, distribution, its association with various diseases, and the potential of nanoparticle-based therapies targeting Sb9.
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Affiliation(s)
- Haozhe Huang
- Department of Pharmaceutical Sciences, University of Pittsburgh School of Pharmacy, Pittsburgh, PA, United States
- University of Pittsburgh Medical Center (UPMC) Hillman Cancer Center, University of Pittsburgh, Pittsburgh, PA, United States
| | - Yiqing Mu
- Department of Pharmaceutical Sciences, University of Pittsburgh School of Pharmacy, Pittsburgh, PA, United States
- University of Pittsburgh Medical Center (UPMC) Hillman Cancer Center, University of Pittsburgh, Pittsburgh, PA, United States
| | - Song Li
- Department of Pharmaceutical Sciences, University of Pittsburgh School of Pharmacy, Pittsburgh, PA, United States
- University of Pittsburgh Medical Center (UPMC) Hillman Cancer Center, University of Pittsburgh, Pittsburgh, PA, United States
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2
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Xiao S, Chen H, Bai Y, Zhang ZY, Liu Y. Targeting PRL phosphatases in hematological malignancies. Expert Opin Ther Targets 2024; 28:259-271. [PMID: 38653737 DOI: 10.1080/14728222.2024.2344695] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/13/2023] [Accepted: 04/15/2024] [Indexed: 04/25/2024]
Abstract
INTRODUCTION Phosphatase of regenerating liver (PRL) family proteins, also known as protein tyrosine phosphatase 4A (PTP4A), have been implicated in many types of cancers. The PRL family of phosphatases consists of three members, PRL1, PRL2, and PRL3. PRLs have been shown to harbor oncogenic potentials and are highly expressed in a variety of cancers. Given their roles in cancer progression and metastasis, PRLs are potential targets for anticancer therapies. However, additional studies are needed to be performed to fully understand the roles of PRLs in blood cancers. AREAS COVERED In this review, we will summarize recent studies of PRLs in normal and malignant hematopoiesis, the role of PRLs in regulating various signaling pathways, and the therapeutic potentials of targeting PRLs in hematological malignancies. We will also discuss how to improve current PRL inhibitors for cancer treatment. EXPERT OPINION Although PRL inhibitors show promising therapeutic effects in preclinical studies of different types of cancers, moving PRL inhibitors from bench to bedside is still challenging. More potent and selective PRL inhibitors are needed to target PRLs in hematological malignancies and improve treatment outcomes.
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Affiliation(s)
- Shiyu Xiao
- Department of Medicine, Northwestern University Feinberg School of Medicine, Chicago, IL, USA
| | - Hongxia Chen
- Department of Medicine, Northwestern University Feinberg School of Medicine, Chicago, IL, USA
- Department of Hematology, Chongqing University Three Gorges Hospital, Chongqing, China
| | - Yunpeng Bai
- Borch Department of Medicinal Chemistry and Molecular Pharmacology, Institute for Cancer Research, and Institute for Drug Discovery, Purdue University, West Lafayette, IN, USA
| | - Zhong-Yin Zhang
- Borch Department of Medicinal Chemistry and Molecular Pharmacology, Institute for Cancer Research, and Institute for Drug Discovery, Purdue University, West Lafayette, IN, USA
| | - Yan Liu
- Department of Medicine, Northwestern University Feinberg School of Medicine, Chicago, IL, USA
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3
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Tsilingiris D, Vallianou NG, Spyrou N, Kounatidis D, Christodoulatos GS, Karampela I, Dalamaga M. Obesity and Leukemia: Biological Mechanisms, Perspectives, and Challenges. Curr Obes Rep 2024; 13:1-34. [PMID: 38159164 PMCID: PMC10933194 DOI: 10.1007/s13679-023-00542-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Accepted: 11/06/2023] [Indexed: 01/03/2024]
Abstract
PURPOSE OF REVIEW To examine the epidemiological data on obesity and leukemia; evaluate the effect of obesity on leukemia outcomes in childhood acute lymphoblastic leukemia (ALL) survivors; assess the potential mechanisms through which obesity may increase the risk of leukemia; and provide the effects of obesity management on leukemia. Preventive (diet, physical exercise, obesity pharmacotherapy, bariatric surgery) measures, repurposing drugs, candidate therapeutic agents targeting oncogenic pathways of obesity and insulin resistance in leukemia as well as challenges of the COVID-19 pandemic are also discussed. RECENT FINDINGS Obesity has been implicated in the development of 13 cancers, such as breast, endometrial, colon, renal, esophageal cancers, and multiple myeloma. Leukemia is estimated to account for approximately 2.5% and 3.1% of all new cancer incidence and mortality, respectively, while it represents the most frequent cancer in children younger than 5 years. Current evidence indicates that obesity may have an impact on the risk of leukemia. Increased birthweight may be associated with the development of childhood leukemia. Obesity is also associated with worse outcomes and increased mortality in leukemic patients. However, there are several limitations and challenges in meta-analyses and epidemiological studies. In addition, weight gain may occur in a substantial number of childhood ALL survivors while the majority of studies have documented an increased risk of relapse and mortality among patients with childhood ALL and obesity. The main pathophysiological pathways linking obesity to leukemia include bone marrow adipose tissue; hormones such as insulin and the insulin-like growth factor system as well as sex hormones; pro-inflammatory cytokines, such as IL-6 and TNF-α; adipocytokines, such as adiponectin, leptin, resistin, and visfatin; dyslipidemia and lipid signaling; chronic low-grade inflammation and oxidative stress; and other emerging mechanisms. Obesity represents a risk factor for leukemia, being among the only known risk factors that could be prevented or modified through weight loss, healthy diet, and physical exercise. Pharmacological interventions, repurposing drugs used for cardiometabolic comorbidities, and bariatric surgery may be recommended for leukemia and obesity-related cancer prevention.
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Affiliation(s)
- Dimitrios Tsilingiris
- First Department of Internal Medicine, University Hospital of Alexandroupolis, Democritus University of Thrace, Dragana, 68100, Alexandroupolis, Greece
| | - Natalia G Vallianou
- Department of Internal Medicine, Evangelismos General Hospital, 45-47 Ipsilantou str, 10676, Athens, Greece
| | - Nikolaos Spyrou
- Tisch Cancer Institute Icahn School of Medicine at Mount Sinai, 1190 One Gustave L. Levy Place, New York, NY, 10029, USA
| | - Dimitris Kounatidis
- Department of Internal Medicine, Evangelismos General Hospital, 45-47 Ipsilantou str, 10676, Athens, Greece
| | | | - Irene Karampela
- 2nd Department of Critical Care, Medical School, University of Athens, Attikon General University Hospital, 1 Rimini Str, 12462, Athens, Greece
| | - Maria Dalamaga
- Department of Biological Chemistry, Medical School, National and Kapodistrian University of Athens, 75 Mikras Asias str, 11527, Athens, Greece.
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Isidro-Hernández M, Casado-García A, Oak N, Alemán-Arteaga S, Ruiz-Corzo B, Martínez-Cano J, Mayado A, Sánchez EG, Blanco O, Gaspar ML, Orfao A, Alonso-López D, De Las Rivas J, Riesco S, Prieto-Matos P, González-Murillo Á, Criado FJG, Cenador MBG, Ramírez-Orellana M, de Andrés B, Vicente-Dueñas C, Cobaleda C, Nichols KE, Sánchez-García I. Immune stress suppresses innate immune signaling in preleukemic precursor B-cells to provoke leukemia in predisposed mice. Nat Commun 2023; 14:5159. [PMID: 37620322 PMCID: PMC10449887 DOI: 10.1038/s41467-023-40961-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/18/2023] [Accepted: 08/17/2023] [Indexed: 08/26/2023] Open
Abstract
The initial steps of B-cell acute lymphoblastic leukemia (B-ALL) development usually pass unnoticed in children. Several preclinical studies have shown that exposure to immune stressors triggers the transformation of preleukemic B cells to full-blown B-ALL, but how this takes place is still a longstanding and unsolved challenge. Here we show that dysregulation of innate immunity plays a driving role in the clonal evolution of pre-malignant Pax5+/- B-cell precursors toward leukemia. Transcriptional profiling reveals that Myd88 is downregulated in immune-stressed pre-malignant B-cell precursors and in leukemic cells. Genetic reduction of Myd88 expression leads to a significant increase in leukemia incidence in Pax5+/-Myd88+/- mice through an inflammation-dependent mechanism. Early induction of Myd88-independent Toll-like receptor 3 signaling results in a significant delay of leukemia development in Pax5+/- mice. Altogether, these findings identify a role for innate immunity dysregulation in leukemia, with important implications for understanding and therapeutic targeting of the preleukemic state in children.
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Affiliation(s)
- Marta Isidro-Hernández
- Experimental Therapeutics and Translational Oncology Program, Instituto de Biología Molecular y Celular del Cáncer, CSIC-USAL, Campus M. de Unamuno s/n, Salamanca, Spain
- Institute of Biomedical Research of Salamanca (IBSAL), Salamanca, Spain
| | - Ana Casado-García
- Experimental Therapeutics and Translational Oncology Program, Instituto de Biología Molecular y Celular del Cáncer, CSIC-USAL, Campus M. de Unamuno s/n, Salamanca, Spain
- Institute of Biomedical Research of Salamanca (IBSAL), Salamanca, Spain
| | - Ninad Oak
- Department of Oncology, St. Jude Children's Research Hospital, Memphis, TN, USA
| | - Silvia Alemán-Arteaga
- Experimental Therapeutics and Translational Oncology Program, Instituto de Biología Molecular y Celular del Cáncer, CSIC-USAL, Campus M. de Unamuno s/n, Salamanca, Spain
- Institute of Biomedical Research of Salamanca (IBSAL), Salamanca, Spain
| | - Belén Ruiz-Corzo
- Experimental Therapeutics and Translational Oncology Program, Instituto de Biología Molecular y Celular del Cáncer, CSIC-USAL, Campus M. de Unamuno s/n, Salamanca, Spain
- Institute of Biomedical Research of Salamanca (IBSAL), Salamanca, Spain
| | - Jorge Martínez-Cano
- Immune system development and function Unit, Centro de Biología Molecular Severo Ochoa (Consejo Superior de Investigaciones Científicas -Universidad Autónoma de Madrid), Madrid, Spain
| | - Andrea Mayado
- Institute of Biomedical Research of Salamanca (IBSAL), Salamanca, Spain
- Servicio de Citometría, Departamento de Medicina, Biomedical Research Networking Centre on Cancer CIBER-CIBERONC (CB16/12/00400), Institute of Health Carlos III, and Instituto de Biología Molecular y Celular del Cáncer, CSIC/Universidad de Salamanca, Salamanca, Spain
| | - Elena G Sánchez
- Department of Pediatric Hematology and Oncology, Hospital Infantil Universitario Niño Jesús, Universidad Autónoma de Madrid, Madrid, Spain
| | - Oscar Blanco
- Institute of Biomedical Research of Salamanca (IBSAL), Salamanca, Spain
- Departamento de Anatomía Patológica, Universidad de Salamanca, Salamanca, Spain
| | - Ma Luisa Gaspar
- Immunobiology Department, Carlos III Health Institute, 28220, Majadahonda (Madrid), Spain
| | - Alberto Orfao
- Institute of Biomedical Research of Salamanca (IBSAL), Salamanca, Spain
- Servicio de Citometría, Departamento de Medicina, Biomedical Research Networking Centre on Cancer CIBER-CIBERONC (CB16/12/00400), Institute of Health Carlos III, and Instituto de Biología Molecular y Celular del Cáncer, CSIC/Universidad de Salamanca, Salamanca, Spain
| | - Diego Alonso-López
- Bioinformatics Unit, Cancer Research Center (CSIC-USAL), Salamanca, Spain
| | - Javier De Las Rivas
- Institute of Biomedical Research of Salamanca (IBSAL), Salamanca, Spain
- Bioinformatics and Functional Genomics Research Group, Cancer Research Center (CSIC-USAL), Salamanca, Spain
| | - Susana Riesco
- Department of Pediatrics, Hospital Universitario de Salamanca, Paseo de San Vicente, 58-182, Salamanca, 37007, Spain
| | - Pablo Prieto-Matos
- Institute of Biomedical Research of Salamanca (IBSAL), Salamanca, Spain
- Department of Pediatrics, Hospital Universitario de Salamanca, Paseo de San Vicente, 58-182, Salamanca, 37007, Spain
| | - África González-Murillo
- Department of Pediatric Hematology and Oncology, Hospital Infantil Universitario Niño Jesús, Universidad Autónoma de Madrid, Madrid, Spain
| | - Francisco Javier García Criado
- Institute of Biomedical Research of Salamanca (IBSAL), Salamanca, Spain
- Departamento de Cirugía, , Universidad de Salamanca, Salamanca, Spain
| | - María Begoña García Cenador
- Institute of Biomedical Research of Salamanca (IBSAL), Salamanca, Spain
- Departamento de Cirugía, , Universidad de Salamanca, Salamanca, Spain
| | - Manuel Ramírez-Orellana
- Department of Pediatric Hematology and Oncology, Hospital Infantil Universitario Niño Jesús, Universidad Autónoma de Madrid, Madrid, Spain
| | - Belén de Andrés
- Immunobiology Department, Carlos III Health Institute, 28220, Majadahonda (Madrid), Spain
| | - Carolina Vicente-Dueñas
- Institute of Biomedical Research of Salamanca (IBSAL), Salamanca, Spain.
- Department of Pediatrics, Hospital Universitario de Salamanca, Paseo de San Vicente, 58-182, Salamanca, 37007, Spain.
| | - César Cobaleda
- Immune system development and function Unit, Centro de Biología Molecular Severo Ochoa (Consejo Superior de Investigaciones Científicas -Universidad Autónoma de Madrid), Madrid, Spain.
| | - Kim E Nichols
- Department of Oncology, St. Jude Children's Research Hospital, Memphis, TN, USA.
| | - Isidro Sánchez-García
- Experimental Therapeutics and Translational Oncology Program, Instituto de Biología Molecular y Celular del Cáncer, CSIC-USAL, Campus M. de Unamuno s/n, Salamanca, Spain.
- Institute of Biomedical Research of Salamanca (IBSAL), Salamanca, Spain.
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5
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Gestrich CK, De Lancy SJ, Kresak A, Sinno MG, Yalley A, Pateva I, Meyerson H, Shetty S, Oduro KA. Mucin 4 (MUC4) Protein is Expressed in B-Acute Lymphoblastic Leukemia (B-ALL) and is restricted to BCR::ABL1 Positive and BCR::ABL-like Subtypes. Hum Pathol 2023; 136:75-83. [PMID: 37023866 DOI: 10.1016/j.humpath.2023.03.018] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/30/2023] [Revised: 03/25/2023] [Accepted: 03/30/2023] [Indexed: 04/08/2023]
Abstract
Mucin 4 (MUC4) is a transmembrane mucin that, like most mucins, is not expressed in normal hematopoietic cells but little is known about its expression in malignant hematopoiesis. B-Acute Lymphoblastic Leukemia (B-ALL) consists of genetically distinct disease subtypes with similarities and differences in gene expression most frequently studied at the mRNA level, which is less amenable to widespread routine clinical use. Here, we demonstrate using immunohistochemistry (IHC) that MUC4 protein is expressed in less than 10% of B-ALL with expression restricted to BCR::ABL1+ and BCR::ABL1-like (CRLF2 rearranged) subtypes of B-ALL (4/13, 31%). None (0/36, 0%) of the remaining B-ALL subtypes expressed MUC4. We compare clinical and pathologic features of MUC4+ and MUC4- BCR::ABL1+/like cases and most significantly report a possible shorter time to relapse for MUC4+ BCR::ABL1 B-ALL that would need to be validated in larger studies. In conclusion, MUC4 is a specific, albeit insensitive, marker for these high-risk subtypes of B-ALL. We propose that MUC4 IHC may be employed diagnostically to rapidly identify these B-ALL subtypes particularly in resource limited settings or when an aspirate sample is not available for ancillary genetic studies.
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Affiliation(s)
- Catherine K Gestrich
- Department of Pathology, University Hospitals Cleveland Medical Center & Rainbow Children's Hospital & Case Western Reserve University, Cleveland, Ohio, 44106, USA; Department of Pathology, University of Pittsburgh Medical Center, Pittsburgh, PA, 15213, USA
| | - Shanelle J De Lancy
- Department of Pathology, University Hospitals Cleveland Medical Center & Rainbow Children's Hospital & Case Western Reserve University, Cleveland, Ohio, 44106, USA
| | - Adam Kresak
- Department of Pathology, University Hospitals Cleveland Medical Center & Rainbow Children's Hospital & Case Western Reserve University, Cleveland, Ohio, 44106, USA
| | - Mohamad G Sinno
- Department of Pediatrics, Division of Hematology and Oncology, University Hospitals Rainbow Babies and Children's Hospital & Case Western Reserve University, Cleveland, Ohio, 44106, USA; Department of Pediatrics, Center for Cancer and Blood Disorders, Phoenix Children's Hospital, Phoenix AZ, USA
| | - Akua Yalley
- Department of Medical Laboratory Sciences, School of Biomedical and Allied Health Sciences, University of Ghana, Accra, Ghana
| | - Irina Pateva
- Department of Pediatrics, Division of Hematology and Oncology, University Hospitals Rainbow Babies and Children's Hospital & Case Western Reserve University, Cleveland, Ohio, 44106, USA
| | - Howard Meyerson
- Department of Pathology, University Hospitals Cleveland Medical Center & Rainbow Children's Hospital & Case Western Reserve University, Cleveland, Ohio, 44106, USA
| | - Shashirekha Shetty
- Department of Pathology, University Hospitals Cleveland Medical Center & Rainbow Children's Hospital & Case Western Reserve University, Cleveland, Ohio, 44106, USA
| | - Kwadwo A Oduro
- Department of Pathology, University Hospitals Cleveland Medical Center & Rainbow Children's Hospital & Case Western Reserve University, Cleveland, Ohio, 44106, USA.
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Peng S, Fu Y. FYN: emerging biological roles and potential therapeutic targets in cancer. J Transl Med 2023; 21:84. [PMID: 36740671 PMCID: PMC9901160 DOI: 10.1186/s12967-023-03930-0] [Citation(s) in RCA: 16] [Impact Index Per Article: 16.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/04/2022] [Accepted: 01/25/2023] [Indexed: 02/07/2023] Open
Abstract
Src family protein kinases (SFKs) play a key role in cell adhesion, invasion, proliferation, survival, apoptosis, and angiogenesis during tumor development. In humans, SFKs consists of eight family members with similar structure and function. There is a high level of overexpression or hyperactivity of SFKs in tumor, and they play an important role in multiple signaling pathways involved in tumorigenesis. FYN is a member of the SFKs that regulate normal cellular processes. Additionally, FYN is highly expressed in many cancers and promotes cancer growth and metastasis through diverse biological functions such as cell growth, apoptosis, and motility migration, as well as the development of drug resistance in many tumors. Moreover, FYN is involved in the regulation of multiple cancer-related signaling pathways, including interactions with ERK, COX-2, STAT5, MET and AKT. FYN is therefore an attractive therapeutic target for various tumor types, and suppressing FYN can improve the prognosis and prolong the life of patients. The purpose of this review is to provide an overview of FYN's structure, expression, upstream regulators, downstream substrate molecules, and biological functions in tumors.
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Affiliation(s)
- SanFei Peng
- grid.412633.10000 0004 1799 0733Department of Gastrointestinal Surgery, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, 450052 China
| | - Yang Fu
- Department of Gastrointestinal Surgery, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, 450052, China.
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7
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Doughan A, Salifu SP. Genes associated with diagnosis and prognosis of Burkitt lymphoma. IET Syst Biol 2022; 16:220-229. [PMID: 36354023 PMCID: PMC9675412 DOI: 10.1049/syb2.12054] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/21/2022] [Revised: 08/30/2022] [Accepted: 10/27/2022] [Indexed: 11/11/2022] Open
Abstract
Burkitt lymphoma (BL) is one of the most aggressive forms of non-Hodgkin's lymphomas that affect children and young adults. The expression of genes and other molecular markers during carcinogenesis can be the basis for diagnosis, prognosis and the design of new and effective drugs for the management of cancers. The aim of this study was to identify genes that can serve as prognostic and therapeutic targets for BL. We analysed RNA-seq data of BL transcriptome sequencing projects in Africa using standard RNA-seq analyses pipeline. We performed pathway enrichment analyses, protein-protein interaction networks, gene co-expression and survival analyses. Gene and pathway enrichment analyses showed that the differentially expressed genes are involved in tube development, signalling receptor binding, viral protein interaction, cell migration, external stimuli response, serine hydrolase activity and PI3K-Akt signalling pathway. Protein-protein interaction network analyses revealed the genes to be highly interconnected, whereas module analyses revealed 25 genes to possess the highest interaction score. Overall survival analyses delineated six genes (ADAMTSL4, SEMA5B, ADAMTS15, THBS2, SPON1 and THBS1) that can serve as biomarkers for prognosis for BL management.
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Affiliation(s)
- Albert Doughan
- Department of Biochemistry and BiotechnologyCollege of ScienceFaculty of BiosciencesKwame Nkrumah University of Science and Technology (KNUST)KumasiGhana
| | - Samson Pandam Salifu
- Department of Biochemistry and BiotechnologyCollege of ScienceFaculty of BiosciencesKwame Nkrumah University of Science and Technology (KNUST)KumasiGhana
- Kumasi Centre for Collaborative Research in Tropical Medicine (KCCR)KumasiGhana
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8
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Bioinformatic Analyses of Broad H3K79me2 Domains in Different Leukemia Cell Line Data Sets. Cells 2022; 11:cells11182830. [PMID: 36139405 PMCID: PMC9496709 DOI: 10.3390/cells11182830] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/27/2022] [Revised: 09/06/2022] [Accepted: 09/07/2022] [Indexed: 11/17/2022] Open
Abstract
A subset of expressed genes is associated with a broad H3K4me3 (histone H3 trimethylated at lysine 4) domain that extends throughout the gene body. Genes marked in this way in normal cells are involved in cell-identity and tumor-suppressor activities, whereas in cancer cells, genes driving the cancer phenotype (oncogenes) have this feature. Other histone modifications associated with expressed genes that display a broad domain have been less studied. Here, we identified genes with the broadest H3K79me2 (histone H3 dimethylated at lysine 79) domain in human leukemic cell lines representing different forms of leukemia. Taking a bioinformatic approach, we provide evidence that genes with the broadest H3K79me2 domain have known roles in leukemia (e.g., JMJD1C). In the mixed-lineage leukemia cell line MOLM-13, the HOXA9 gene is in a 100 kb broad H3K79me2 domain with other HOXA protein-coding and oncogenic long non-coding RNA genes. The genes in this domain contribute to leukemia. This broad H3K79me2 domain has an unstable chromatin structure, as was evident by enhanced chromatin accessibility throughout. Together, we provide evidence that identification of genes with the broadest H3K79me2 domain will aid in generating a panel of genes in the diagnosis and therapeutic treatment of leukemia in the future.
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9
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Targeting Redox Regulation as a Therapeutic Opportunity against Acute Leukemia: Pro-Oxidant Strategy or Antioxidant Approach? Antioxidants (Basel) 2022; 11:antiox11091696. [PMID: 36139768 PMCID: PMC9495346 DOI: 10.3390/antiox11091696] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/26/2022] [Revised: 08/07/2022] [Accepted: 08/26/2022] [Indexed: 11/17/2022] Open
Abstract
Redox adaptation is essential for human health, as the physiological quantities of non-radical reactive oxygen species operate as the main second messengers to regulate normal redox reactions by controlling several sensors. An abnormal increase reactive oxygen species, called oxidative stress, induces biological injury. For this reason, variations in oxidative stress continue to receive consideration as a possible approach to treat leukemic diseases. However, the intricacy of redox reactions and their effects might be a relevant obstacle; consequently, and alongside approaches aimed at increasing oxidative stress in neoplastic cells, antioxidant strategies have also been suggested for the same purpose. The present review focuses on the molecular processes of anomalous oxidative stress in acute myeloid and acute lymphoblastic leukemias as well as on the oxidative stress-determined pathways implicated in leukemogenic development. Furthermore, we review the effect of chemotherapies on oxidative stress and the possibility that their pharmacological effects might be increased by modifying the intracellular redox equilibrium through a pro-oxidant approach or an antioxidant strategy. Finally, we evaluated the prospect of varying oxidative stress as an efficacious modality to destroy chemoresistant cells using new methodologies. Altering redox conditions may be advantageous for inhibiting genomic variability and the eradication of leukemic clones will promote the treatment of leukemic disease.
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10
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Kaumeyer B, Fidai S, Sukhanova M, Yap KL, Segal J, Raca G, Stock W, McNeer J, Lager AM, Gurbuxani S. MUC4 expression by immunohistochemistry is a specific marker for BCR-ABL1+ and BCR-ABL1-like B-lymphoblastic leukemia. Leuk Lymphoma 2022; 63:1436-1444. [PMID: 35171727 DOI: 10.1080/10428194.2022.2025797] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
Abstract
BCR-ABL1-like B-acute lymphoblastic leukemia (B-ALL) is a genetically heterogeneous group of high-risk B-ALL that benefits from targeted tyrosine kinase inhibitor (TKI) therapy. The incidence of this high-risk B-ALL is relatively low and screening with surrogate markers will be useful to identify patients for further genetic testing. Here we demonstrate that widely available MUC4 protein immunohistochemistry (IHC) is predictive of a BCR-ABL1-like genotype for a subset of patients. Overall, MUC4 expression was observed in 36% (9/25) BCR-ABL1-like, 43% (3/7) BCR-ABL1+ and 9% (2/22) B-ALL other cases (p=.019 for BCR-ABL1 like and BCR-ABL1+ versus B-ALL others). Furthermore, 83% (5/6) of patients with ABL class fusions showed MUC4 expression when compared to 25% (4/16, p=.006) patients with JAK class fusions. Overall, the study demonstrates that MUC4 expression is highly specific (90.9%) for BCR-ABL1+ and BCR-ABL1-like B-ALL with high sensitivity for cases with ABL class fusions.
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Affiliation(s)
| | - Shiraz Fidai
- Department of Pathology, University of Chicago, Chicago, IL, USA.,Department of Pathology and Laboratory Medicine, John H. Stroger Hospital of Cook County, Chicago, IL, USA
| | - Madina Sukhanova
- Department of Medicine. University of Chicago, Chicago, IL, USA.,Department of Pathology & Laboratory Medicine, Northwestern University Feinberg School of Medicine, Chicago, IL, USA
| | - Kai Lee Yap
- Department of Medicine. University of Chicago, Chicago, IL, USA.,Department of Pathology & Laboratory Medicine, Ann & Robert H. Lurie Children's Hospital of Chicago, Northwestern University Feinberg School of Medicine, Chicago, IL, USA
| | - Jeremy Segal
- Department of Pathology, University of Chicago, Chicago, IL, USA
| | - Gordana Raca
- Department of Medicine. University of Chicago, Chicago, IL, USA.,Department of Pathology and Laboratory Medicine, Children's Hospital Los Angeles, Keck School of Medicine, University of Southern California, California, LA, USA
| | - Wendy Stock
- Department of Medicine. University of Chicago, Chicago, IL, USA
| | - Jennifer McNeer
- Department of Pediatrics, University of Chicago, Chicago, IL, USA
| | - Angela M Lager
- Department of Medicine. University of Chicago, Chicago, IL, USA
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11
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Becic A, Leifeld J, Shaukat J, Hollmann M. Tetraspanins as Potential Modulators of Glutamatergic Synaptic Function. Front Mol Neurosci 2022; 14:801882. [PMID: 35046772 PMCID: PMC8761850 DOI: 10.3389/fnmol.2021.801882] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/25/2021] [Accepted: 12/07/2021] [Indexed: 12/16/2022] Open
Abstract
Tetraspanins (Tspans) comprise a membrane protein family structurally defined by four transmembrane domains and intracellular N and C termini that is found in almost all cell types and tissues of eukaryotes. Moreover, they are involved in a bewildering multitude of diverse biological processes such as cell adhesion, motility, protein trafficking, signaling, proliferation, and regulation of the immune system. Beside their physiological roles, they are linked to many pathophysiological phenomena, including tumor progression regulation, HIV-1 replication, diabetes, and hepatitis. Tetraspanins are involved in the formation of extensive protein networks, through interactions not only with themselves but also with numerous other specific proteins, including regulatory proteins in the central nervous system (CNS). Interestingly, recent studies showed that Tspan7 impacts dendritic spine formation, glutamatergic synaptic transmission and plasticity, and that Tspan6 is correlated with epilepsy and intellectual disability (formerly known as mental retardation), highlighting the importance of particular tetraspanins and their involvement in critical processes in the CNS. In this review, we summarize the current knowledge of tetraspanin functions in the brain, with a particular focus on their impact on glutamatergic neurotransmission. In addition, we compare available resolved structures of tetraspanin family members to those of auxiliary proteins of glutamate receptors that are known for their modulatory effects.
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12
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Korinfskaya S, Parameswaran S, Weirauch MT, Barski A. Runx Transcription Factors in T Cells-What Is Beyond Thymic Development? Front Immunol 2021; 12:701924. [PMID: 34421907 PMCID: PMC8377396 DOI: 10.3389/fimmu.2021.701924] [Citation(s) in RCA: 25] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/28/2021] [Accepted: 07/16/2021] [Indexed: 12/12/2022] Open
Abstract
Runx proteins (also known as Runt-domain transcription factors) have been studied for a long time as key regulators of cellular differentiation. RUNX2 has been described as essential for osteogenesis, whereas RUNX1 and RUNX3 are known to control blood cell development during different stages of cell lineage specification. However, recent studies show evidence of complex relationships between RUNX proteins, chromatin-modifying machinery, the cytoskeleton and different transcription factors in various non-embryonic contexts, including mature T cell homeostasis, inflammation and cancer. In this review, we discuss the diversity of Runx functions in mature T helper cells, such as production of cytokines and chemokines by different CD4 T cell populations; apoptosis; and immunologic memory acquisition. We then briefly cover recent findings about the contribution of RUNX1, RUNX2 and RUNX3 to various immunologic diseases. Finally, we discuss areas that require further study to better understand the role that Runx proteins play in inflammation and immunity.
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Affiliation(s)
- Svetlana Korinfskaya
- Division of Allergy & Immunology, Cincinnati Children's Hospital Medical Center, Cincinnati, OH, United States
| | - Sreeja Parameswaran
- Center for Autoimmune Genomics and Etiology, Cincinnati Children's Hospital Medical Center, Cincinnati, OH, United States
| | - Matthew T Weirauch
- Center for Autoimmune Genomics and Etiology, Cincinnati Children's Hospital Medical Center, Cincinnati, OH, United States.,Divisions of Biomedical Informatics and Developmental Biology, Cincinnati Children's Hospital Medical Center, Cincinnati, OH, United States.,Department of Pediatrics, University of Cincinnati College of Medicine, Cincinnati, OH, United States
| | - Artem Barski
- Division of Allergy & Immunology, Cincinnati Children's Hospital Medical Center, Cincinnati, OH, United States.,Department of Pediatrics, University of Cincinnati College of Medicine, Cincinnati, OH, United States.,Division of Human Genetics, Cincinnati Children's Hospital Medical Center, Cincinnati, OH, United States
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13
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Racedo S, Portnoy I, Vélez JI, San-Juan-Vergara H, Sanjuan M, Zurek E. A new pipeline for structural characterization and classification of RNA-Seq microbiome data. BioData Min 2021; 14:31. [PMID: 34243809 PMCID: PMC8268467 DOI: 10.1186/s13040-021-00266-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/04/2020] [Accepted: 06/16/2021] [Indexed: 11/10/2022] Open
Abstract
BACKGROUND High-throughput sequencing enables the analysis of the composition of numerous biological systems, such as microbial communities. The identification of dependencies within these systems requires the analysis and assimilation of the underlying interaction patterns between all the variables that make up that system. However, this task poses a challenge when considering the compositional nature of the data coming from DNA-sequencing experiments because traditional interaction metrics (e.g., correlation) produce unreliable results when analyzing relative fractions instead of absolute abundances. The compositionality-associated challenges extend to the classification task, as it usually involves the characterization of the interactions between the principal descriptive variables of the datasets. The classification of new samples/patients into binary categories corresponding to dissimilar biological settings or phenotypes (e.g., control and cases) could help researchers in the development of treatments/drugs. RESULTS Here, we develop and exemplify a new approach, applicable to compositional data, for the classification of new samples into two groups with different biological settings. We propose a new metric to characterize and quantify the overall correlation structure deviation between these groups and a technique for dimensionality reduction to facilitate graphical representation. We conduct simulation experiments with synthetic data to assess the proposed method's classification accuracy. Moreover, we illustrate the performance of the proposed approach using Operational Taxonomic Unit (OTU) count tables obtained through 16S rRNA gene sequencing data from two microbiota experiments. Also, compare our method's performance with that of two state-of-the-art methods. CONCLUSIONS Simulation experiments show that our method achieves a classification accuracy equal to or greater than 98% when using synthetic data. Finally, our method outperforms the other classification methods with real datasets from gene sequencing experiments.
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Affiliation(s)
| | - Ivan Portnoy
- Universidad del Norte, Barranquilla, Colombia.
- Productivity and Innovation Department, Universidad de la Costa, Calle 58 # 55-56, Barranquilla, Colombia.
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14
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Redox Control in Acute Lymphoblastic Leukemia: From Physiology to Pathology and Therapeutic Opportunities. Cells 2021; 10:cells10051218. [PMID: 34067520 PMCID: PMC8155968 DOI: 10.3390/cells10051218] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/08/2021] [Revised: 05/04/2021] [Accepted: 05/13/2021] [Indexed: 02/07/2023] Open
Abstract
Acute lymphoblastic leukemia (ALL) is a hematological malignancy originating from B- or T-lymphoid progenitor cells. Recent studies have shown that redox dysregulation caused by overproduction of reactive oxygen species (ROS) has an important role in the development and progression of leukemia. The application of pro-oxidant therapy, which targets redox dysregulation, has achieved satisfactory results in alleviating the conditions of and improving the survival rate for patients with ALL. However, drug resistance and side effects are two major challenges that must be addressed in pro-oxidant therapy. Oxidative stress can activate a variety of antioxidant mechanisms to help leukemia cells escape the damage caused by pro-oxidant drugs and develop drug resistance. Hematopoietic stem cells (HSCs) are extremely sensitive to oxidative stress due to their low levels of differentiation, and the use of pro-oxidant drugs inevitably causes damage to HSCs and may even cause severe bone marrow suppression. In this article, we reviewed research progress regarding the generation and regulation of ROS in normal HSCs and ALL cells as well as the impact of ROS on the biological behavior and fate of cells. An in-depth understanding of the regulatory mechanisms of redox homeostasis in normal and malignant HSCs is conducive to the formulation of rational targeted treatment plans to effectively reduce oxidative damage to normal HSCs while eradicating ALL cells.
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15
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Current Views on the Interplay between Tyrosine Kinases and Phosphatases in Chronic Myeloid Leukemia. Cancers (Basel) 2021; 13:cancers13102311. [PMID: 34065882 PMCID: PMC8151247 DOI: 10.3390/cancers13102311] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/01/2021] [Revised: 05/07/2021] [Accepted: 05/10/2021] [Indexed: 02/07/2023] Open
Abstract
Simple Summary The chromosomal alteration t(9;22) generating the BCR-ABL1 fusion protein represents the principal feature that distinguishes some types of leukemia. An increasing number of articles have focused the attention on the relevance of protein phosphatases and their potential role in the control of BCR-ABL1-dependent or -independent signaling in different areas related to the biology of chronic myeloid leukemia. Herein, we discuss how tyrosine and serine/threonine protein phosphatases may interact with protein kinases, in order to regulate proliferative signal cascades, quiescence and self-renewals on leukemic stem cells, and drug-resistance, indicating how BCR-ABL1 can (directly or indirectly) affect these critical cells behaviors. We provide an updated review of the literature on the function of protein phosphatases and their regulation mechanism in chronic myeloid leukemia. Abstract Chronic myeloid leukemia (CML) is a myeloproliferative disorder characterized by BCR-ABL1 oncogene expression. This dysregulated protein-tyrosine kinase (PTK) is known as the principal driver of the disease and is targeted by tyrosine kinase inhibitors (TKIs). Extensive documentation has elucidated how the transformation of malignant cells is characterized by multiple genetic/epigenetic changes leading to the loss of tumor-suppressor genes function or proto-oncogenes expression. The impairment of adequate levels of substrates phosphorylation, thus affecting the balance PTKs and protein phosphatases (PPs), represents a well-established cellular mechanism to escape from self-limiting signals. In this review, we focus our attention on the characterization of and interactions between PTKs and PPs, emphasizing their biological roles in disease expansion, the regulation of LSCs and TKI resistance. We decided to separate those PPs that have been validated in primary cell models or leukemia mouse models from those whose studies have been performed only in cell lines (and, thus, require validation), as there may be differences in the manner that the associated pathways are modified under these two conditions. This review summarizes the roles of diverse PPs, with hope that better knowledge of the interplay among phosphatases and kinases will eventually result in a better understanding of this disease and contribute to its eradication.
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16
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An intact gut microbiome protects genetically predisposed mice against leukemia. Blood 2021; 136:2003-2017. [PMID: 32911536 DOI: 10.1182/blood.2019004381] [Citation(s) in RCA: 55] [Impact Index Per Article: 18.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/03/2019] [Accepted: 08/21/2020] [Indexed: 12/22/2022] Open
Abstract
The majority of childhood leukemias are precursor B-cell acute lymphoblastic leukemias (pB-ALLs) caused by a combination of prenatal genetic predispositions and oncogenic events occurring after birth. Although genetic predispositions are frequent in children (>1% to 5%), fewer than 1% of genetically predisposed carriers will develop pB-ALL. Although infectious stimuli are believed to play a major role in leukemogenesis, the critical determinants are not well defined. Here, by using murine models of pB-ALL, we show that microbiome disturbances incurred by antibiotic treatment early in life were sufficient to induce leukemia in genetically predisposed mice, even in the absence of infectious stimuli and independent of T cells. By using V4 and full-length 16S ribosomal RNA sequencing of a series of fecal samples, we found that genetic predisposition to pB-ALL (Pax5 heterozygosity or ETV6-RUNX1 fusion) shaped a distinct gut microbiome. Machine learning accurately (96.8%) predicted genetic predisposition using 40 of 3983 amplicon sequence variants as proxies for bacterial species. Transplantation of either wild-type (WT) or Pax5+/- hematopoietic bone marrow cells into WT recipient mice revealed that the microbiome is shaped and determined in a donor genotype-specific manner. Gas chromatography-mass spectrometry (GC-MS) analyses of sera from WT and Pax5+/- mice demonstrated the presence of a genotype-specific distinct metabolomic profile. Taken together, our data indicate that it is a lack of commensal microbiota rather than the presence of specific bacteria that promotes leukemia in genetically predisposed mice. Future large-scale longitudinal studies are required to determine whether targeted microbiome modification in children predisposed to pB-ALL could become a successful prevention strategy.
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17
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Scopim-Ribeiro R, Machado-Neto JA, Eide CA, Coelho-Silva JL, Fenerich BA, Fernandes JC, Scheucher PS, Savage Stevens SL, de Melo Campos P, Olalla Saad ST, de Carvalho Palma L, de Figueiredo-Pontes LL, Simões BP, Rego EM, Tognon CE, Druker BJ, Traina F. NT157, an IGF1R-IRS1/2 inhibitor, exhibits antineoplastic effects in pre-clinical models of chronic myeloid leukemia. Invest New Drugs 2021; 39:736-746. [PMID: 33403501 DOI: 10.1007/s10637-020-01028-8] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/24/2020] [Accepted: 10/26/2020] [Indexed: 11/26/2022]
Abstract
Chronic myeloid leukemia (CML) is successfully treated with BCR-ABL1 tyrosine kinase inhibitors, but a significant percentage of patients develop resistance. Insulin receptor substrate 1 (IRS1) has been shown to constitutively associate with BCR-ABL1, and IRS1-specific silencing leads to antineoplastic effects in CML cell lines. Here, we characterized the efficacy of NT157, a pharmacological inhibitor of IGF1R-IRS1/2, in CML cells and observed significantly reduced cell viability and proliferation, accompanied by induction of apoptosis. In human K562 cells and in murine Ba/F3 cells, engineered to express either wild-type BCR-ABL1 or the imatinib-resistant BCR-ABL1T315I mutant, NT157 inhibited BCR-ABL1, IGF1R, IRS1/2, PI3K/AKT/mTOR, and STAT3/5 signaling, increased CDKN1A, FOS and JUN tumor suppressor gene expression, and reduced MYC and BCL2 oncogenes. NT157 significantly reduced colony formation of human primary CML cells with minimal effect on normal hematopoietic cells. Exposure of primary CML cells harboring BCR-ABL1T315I to NT157 resulted in increased apoptosis, reduced cell proliferation and decreased phospho-CRKL levels. In conclusion, NT157 has antineoplastic effects on BCR-ABL1 leukemogenesis, independent of T315I mutational status.
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MESH Headings
- Animals
- Antineoplastic Agents/pharmacology
- Antineoplastic Agents/therapeutic use
- Apoptosis/drug effects
- Cell Line, Tumor
- Cell Proliferation/drug effects
- Cell Survival/drug effects
- Disease Models, Animal
- Drug Resistance, Neoplasm/drug effects
- Fusion Proteins, bcr-abl/antagonists & inhibitors
- Gene Expression Regulation, Neoplastic
- Humans
- Imatinib Mesylate/pharmacology
- Insulin Receptor Substrate Proteins/antagonists & inhibitors
- Leukemia, Myelogenous, Chronic, BCR-ABL Positive/drug therapy
- Leukemia, Myelogenous, Chronic, BCR-ABL Positive/genetics
- Mice
- Protein Kinase Inhibitors/pharmacology
- Protein Kinase Inhibitors/therapeutic use
- Pyrogallol/analogs & derivatives
- Pyrogallol/pharmacology
- Pyrogallol/therapeutic use
- Receptor, IGF Type 1/antagonists & inhibitors
- Sulfonamides/pharmacology
- Sulfonamides/therapeutic use
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Affiliation(s)
- Renata Scopim-Ribeiro
- Department of Medical Imaging, Hematology, and Oncology, Ribeirão Preto Medical School, University of São Paulo, Av. Bandeirante 3900, Ribeirão Preto, São Paulo, Brazil
- Knight Cancer Institute, Oregon Health & Science University, Portland, OR, USA
| | - João Agostinho Machado-Neto
- Department of Medical Imaging, Hematology, and Oncology, Ribeirão Preto Medical School, University of São Paulo, Av. Bandeirante 3900, Ribeirão Preto, São Paulo, Brazil
- Department of Pharmacology, Institute of Biomedical Sciences, University of São Paulo, São Paulo, Brazil
| | - Christopher A Eide
- Knight Cancer Institute, Oregon Health & Science University, Portland, OR, USA
- Howard Hughes Medical Institute, Portland, OR, USA
| | - Juan Luiz Coelho-Silva
- Department of Medical Imaging, Hematology, and Oncology, Ribeirão Preto Medical School, University of São Paulo, Av. Bandeirante 3900, Ribeirão Preto, São Paulo, Brazil
| | - Bruna Alves Fenerich
- Department of Medical Imaging, Hematology, and Oncology, Ribeirão Preto Medical School, University of São Paulo, Av. Bandeirante 3900, Ribeirão Preto, São Paulo, Brazil
| | - Jaqueline Cristina Fernandes
- Department of Medical Imaging, Hematology, and Oncology, Ribeirão Preto Medical School, University of São Paulo, Av. Bandeirante 3900, Ribeirão Preto, São Paulo, Brazil
| | - Priscila Santos Scheucher
- Department of Medical Imaging, Hematology, and Oncology, Ribeirão Preto Medical School, University of São Paulo, Av. Bandeirante 3900, Ribeirão Preto, São Paulo, Brazil
| | | | - Paula de Melo Campos
- Hematology and Transfusion Medicine Center, University of Campinas/Hemocentro UNICAMP, Campinas, São Paulo, Brazil
| | - Sara T Olalla Saad
- Hematology and Transfusion Medicine Center, University of Campinas/Hemocentro UNICAMP, Campinas, São Paulo, Brazil
| | - Leonardo de Carvalho Palma
- Department of Medical Imaging, Hematology, and Oncology, Ribeirão Preto Medical School, University of São Paulo, Av. Bandeirante 3900, Ribeirão Preto, São Paulo, Brazil
| | - Lorena Lobo de Figueiredo-Pontes
- Department of Medical Imaging, Hematology, and Oncology, Ribeirão Preto Medical School, University of São Paulo, Av. Bandeirante 3900, Ribeirão Preto, São Paulo, Brazil
| | - Belinda Pinto Simões
- Department of Medical Imaging, Hematology, and Oncology, Ribeirão Preto Medical School, University of São Paulo, Av. Bandeirante 3900, Ribeirão Preto, São Paulo, Brazil
| | - Eduardo Magalhães Rego
- Department of Medical Imaging, Hematology, and Oncology, Ribeirão Preto Medical School, University of São Paulo, Av. Bandeirante 3900, Ribeirão Preto, São Paulo, Brazil
- Hematology Division, LIM31, Faculdade de Medicina, University of São Paulo, São Paulo, Brazil
| | - Cristina E Tognon
- Knight Cancer Institute, Oregon Health & Science University, Portland, OR, USA
- Howard Hughes Medical Institute, Portland, OR, USA
| | - Brian J Druker
- Knight Cancer Institute, Oregon Health & Science University, Portland, OR, USA
- Howard Hughes Medical Institute, Portland, OR, USA
| | - Fabiola Traina
- Department of Medical Imaging, Hematology, and Oncology, Ribeirão Preto Medical School, University of São Paulo, Av. Bandeirante 3900, Ribeirão Preto, São Paulo, Brazil.
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18
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Lee J, Robinson ME, Ma N, Artadji D, Ahmed MA, Xiao G, Sadras T, Deb G, Winchester J, Cosgun KN, Geng H, Chan LN, Kume K, Miettinen TP, Zhang Y, Nix MA, Klemm L, Chen CW, Chen J, Khairnar V, Wiita AP, Thomas-Tikhonenko A, Farzan M, Jung JU, Weinstock DM, Manalis SR, Diamond MS, Vaidehi N, Müschen M. IFITM3 functions as a PIP3 scaffold to amplify PI3K signalling in B cells. Nature 2020; 588:491-497. [PMID: 33149299 PMCID: PMC8087162 DOI: 10.1038/s41586-020-2884-6] [Citation(s) in RCA: 56] [Impact Index Per Article: 14.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/11/2019] [Accepted: 08/13/2020] [Indexed: 12/25/2022]
Abstract
Interferon-induced transmembrane protein 3 (IFITM3) has previously been identified as an endosomal protein that blocks viral infection1-3. Here we studied clinical cohorts of patients with B cell leukaemia and lymphoma, and identified IFITM3 as a strong predictor of poor outcome. In normal resting B cells, IFITM3 was minimally expressed and mainly localized in endosomes. However, engagement of the B cell receptor (BCR) induced both expression of IFITM3 and phosphorylation of this protein at Tyr20, which resulted in the accumulation of IFITM3 at the cell surface. In B cell leukaemia, oncogenic kinases phosphorylate IFITM3 at Tyr20, which causes constitutive localization of this protein at the plasma membrane. In a mouse model, Ifitm3-/- naive B cells developed in normal numbers; however, the formation of germinal centres and the production of antigen-specific antibodies were compromised. Oncogenes that induce the development of leukaemia and lymphoma did not transform Ifitm3-/- B cells. Conversely, the phosphomimetic IFITM3(Y20E) mutant induced oncogenic PI3K signalling and initiated the transformation of premalignant B cells. Mechanistic experiments revealed that IFITM3 functions as a PIP3 scaffold and central amplifier of PI3K signalling. The amplification of PI3K signals depends on IFITM3 using two lysine residues (Lys83 and Lys104) in its conserved intracellular loop as a scaffold for the accumulation of PIP3. In Ifitm3-/- B cells, lipid rafts were depleted of PIP3, which resulted in the defective expression of over 60 lipid-raft-associated surface receptors, and impaired BCR signalling and cellular adhesion. We conclude that the phosphorylation of IFITM3 that occurs after B cells encounter antigen induces a dynamic switch from antiviral effector functions in endosomes to a PI3K amplification loop at the cell surface. IFITM3-dependent amplification of PI3K signalling, which in part acts downstream of the BCR, is critical for the rapid expansion of B cells with high affinity to antigen. In addition, multiple oncogenes depend on IFITM3 to assemble PIP3-dependent signalling complexes and amplify PI3K signalling for malignant transformation.
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Affiliation(s)
- Jaewoong Lee
- Center of Molecular and Cellular Oncology, Yale Cancer Center, Yale School of Medicine, New Haven, CT, USA
| | - Mark E Robinson
- Center of Molecular and Cellular Oncology, Yale Cancer Center, Yale School of Medicine, New Haven, CT, USA
| | - Ning Ma
- Department of Computational and Quantitative Medicine, City of Hope Comprehensive Cancer Center, Duarte, CA, USA
| | - Dewan Artadji
- Center of Molecular and Cellular Oncology, Yale Cancer Center, Yale School of Medicine, New Haven, CT, USA
| | - Mohamed A Ahmed
- Department of Systems Biology, City of Hope Comprehensive Cancer Center, Duarte, CA, USA
| | - Gang Xiao
- Department of Systems Biology, City of Hope Comprehensive Cancer Center, Duarte, CA, USA
| | - Teresa Sadras
- Center of Molecular and Cellular Oncology, Yale Cancer Center, Yale School of Medicine, New Haven, CT, USA
| | - Gauri Deb
- Department of Systems Biology, City of Hope Comprehensive Cancer Center, Duarte, CA, USA
| | - Janet Winchester
- Department of Systems Biology, City of Hope Comprehensive Cancer Center, Duarte, CA, USA
| | - Kadriye Nehir Cosgun
- Center of Molecular and Cellular Oncology, Yale Cancer Center, Yale School of Medicine, New Haven, CT, USA
| | - Huimin Geng
- Department of Laboratory Medicine, University of California San Francisco, San Francisco, CA, USA
| | - Lai N Chan
- Center of Molecular and Cellular Oncology, Yale Cancer Center, Yale School of Medicine, New Haven, CT, USA
| | - Kohei Kume
- Center of Molecular and Cellular Oncology, Yale Cancer Center, Yale School of Medicine, New Haven, CT, USA
| | - Teemu P Miettinen
- Koch Institute for Integrative Cancer Research, Massachusetts Institute of Technology, Cambridge, MA, USA.,Medical Research Council Laboratory for Molecular Cell Biology, University College London, London, UK
| | - Ye Zhang
- Koch Institute for Integrative Cancer Research, Massachusetts Institute of Technology, Cambridge, MA, USA
| | - Matthew A Nix
- Department of Laboratory Medicine, University of California San Francisco, San Francisco, CA, USA
| | - Lars Klemm
- Center of Molecular and Cellular Oncology, Yale Cancer Center, Yale School of Medicine, New Haven, CT, USA
| | - Chun Wei Chen
- Department of Systems Biology, City of Hope Comprehensive Cancer Center, Duarte, CA, USA
| | - Jianjun Chen
- Department of Systems Biology, City of Hope Comprehensive Cancer Center, Duarte, CA, USA
| | - Vishal Khairnar
- Department of Systems Biology, City of Hope Comprehensive Cancer Center, Duarte, CA, USA
| | - Arun P Wiita
- Department of Laboratory Medicine, University of California San Francisco, San Francisco, CA, USA
| | - Andrei Thomas-Tikhonenko
- Department of Pathology and Laboratory Medicine, Children's Hospital of Philadelphia and Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA, USA
| | - Michael Farzan
- Department of Immunology and Microbiology, The Scripps Research Institute, Jupiter, FL, USA
| | - Jae U Jung
- Department of Cancer Biology, Lerner Research Institute, Cleveland Clinic, Cleveland, OH, USA
| | - David M Weinstock
- Dana Farber Cancer Institute, Boston, MA, USA.,Harvard Medical School, Boston, MA, USA
| | - Scott R Manalis
- Koch Institute for Integrative Cancer Research, Massachusetts Institute of Technology, Cambridge, MA, USA.,Department of Biological Engineering, Massachusetts Institute of Technology, Cambridge, MA, USA
| | - Michael S Diamond
- Department of Medicine, Washington University School of Medicine in St Louis, St Louis, MO, USA.,Department of Molecular Microbiology, Washington University School of Medicine in St Louis, St Louis, MO, USA.,Department of Pathology and Immunology, Washington University School of Medicine in St Louis, St Louis, MO, USA
| | - Nagarajan Vaidehi
- Department of Computational and Quantitative Medicine, City of Hope Comprehensive Cancer Center, Duarte, CA, USA
| | - Markus Müschen
- Center of Molecular and Cellular Oncology, Yale Cancer Center, Yale School of Medicine, New Haven, CT, USA. .,Department of Immunobiology, Yale University, New Haven, CT, USA.
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19
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Pre-Treatment Mutational and Transcriptomic Landscape of Responding Metastatic Melanoma Patients to Anti-PD1 Immunotherapy. Cancers (Basel) 2020; 12:cancers12071943. [PMID: 32708981 PMCID: PMC7409244 DOI: 10.3390/cancers12071943] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/30/2020] [Revised: 07/13/2020] [Accepted: 07/13/2020] [Indexed: 01/08/2023] Open
Abstract
Immunotherapy, such as anti-PD1, has improved the survival of patients with metastatic melanoma. However, predicting which patients will respond to immunotherapy remains a significant knowledge gap. In this study we analyzed pre-immunotherapy treated tumors from 52 patients with metastatic melanoma and monitored their response based on RECIST 1.1 criteria. The responders group contained 21 patients that had a complete or partial response, while the 31 non-responders had stable or progressive disease. Whole exome sequencing (WES) was used to identify biomarkers of anti-PD1 response from somatic mutations between the two groups. Variants in codons G34 and G41 in NFKBIE, a negative regulator of NFkB, were found exclusively in the responders. Mutations in NKBIE-related genes were also enriched in the responder group compared to the non-responders. Patients that harbored NFKBIE-related gene mutations also had a higher mutational burden, decreased tumor volume with treatment, and increased progression-free survival. RNA sequencing on a subset of tumor samples identified that CD83 was highly expressed in our responder group. Additionally, Gene Set Enrichment Analysis showed that the TNFalpha signaling via NFkB pathway was one of the top pathways with differential expression in responders vs. non-responders. In vitro NFkB activity assays indicated that the G34E variant caused loss-of-function of NFKBIE, and resulted in activation of NFkB signaling. Flow cytometry assays indicated that G34E variant was associated with upregulation of CD83 in human melanoma cell lines. These results suggest that NFkB activation and signaling in tumor cells contributes to a favorable anti-PD1 treatment response, and clinical screening to include aberrations in NFkB-related genes should be considered.
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20
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Li Z, Abadir E, Lee K, Clarke C, Bryant CE, Cooper W, Pietersz G, Favaloro J, Silveira PA, Nj Hart D, Ju X, Clark GJ. Targeting CD83 in mantle cell lymphoma with anti-human CD83 antibody. Clin Transl Immunology 2020; 9:e1156. [PMID: 32685149 PMCID: PMC7362189 DOI: 10.1002/cti2.1156] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/21/2020] [Revised: 06/02/2020] [Accepted: 06/22/2020] [Indexed: 12/17/2022] Open
Abstract
Objectives Effective antibody-drug conjugates (ADCs) provide potent targeted cancer therapies. CD83 is expressed on activated immune cells including B cells and is a therapeutic target for Hodgkin lymphoma. Our objective was to determine CD83 expression on non-Hodgkin lymphoma (NHL) and its therapeutic potential to treat mantle cell lymphoma (MCL) which is currently an incurable NHL. Methods We analysed CD83 expression on MCL cell lines and the lymph node/bone marrow biopsies of MCL patients. We tested the killing effect of CD83 ADC in vitro and in an in vivo xenograft MCL mouse model. Results CD83 is expressed on MCL, and its upregulation is correlated with the nuclear factor κB (NF-κB) activation. CD83 ADC kills MCL in vitro and in vivo. Doxorubicin and cyclophosphamide (CP), which are included in the current treatment regimen for MCL, enhance the NF-κB activity and increase CD83 expression on MCL cell lines. The combination of CD83 ADC with doxorubicin and CP has synergistic killing effect of MCL. Conclusion This study provides evidence that a novel immunotherapeutic agent CD83 ADC, in combination with chemotherapy, has the potential to enhance the efficacy of current treatments for MCL.
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Affiliation(s)
- Ziduo Li
- Dendritic Cell Research ANZAC Research Institute Sydney NSW Australia.,Sydney Medical School The University of Sydney Sydney NSW Australia
| | - Edward Abadir
- Dendritic Cell Research ANZAC Research Institute Sydney NSW Australia.,Sydney Medical School The University of Sydney Sydney NSW Australia.,Institute of Haematology Royal Prince Alfred Hospital Sydney NSW Australia
| | - Kenneth Lee
- Sydney Medical School The University of Sydney Sydney NSW Australia.,Anatomical Pathology Concord Repatriation General Hospital Sydney NSW Australia
| | - Candice Clarke
- Anatomical Pathology Concord Repatriation General Hospital Sydney NSW Australia
| | - Christian E Bryant
- Institute of Haematology Royal Prince Alfred Hospital Sydney NSW Australia
| | - Wendy Cooper
- Institute of Haematology Royal Prince Alfred Hospital Sydney NSW Australia
| | - Geoffrey Pietersz
- Inflammation, Cancer and Infection Burnet Institute Melbourne VIC Australia.,Baker Heart and Diabetes Institute Melbourne VIC Australia
| | - James Favaloro
- Institute of Haematology Royal Prince Alfred Hospital Sydney NSW Australia
| | - Pablo A Silveira
- Dendritic Cell Research ANZAC Research Institute Sydney NSW Australia.,Sydney Medical School The University of Sydney Sydney NSW Australia
| | - Derek Nj Hart
- Dendritic Cell Research ANZAC Research Institute Sydney NSW Australia.,Sydney Medical School The University of Sydney Sydney NSW Australia
| | - Xinsheng Ju
- Dendritic Cell Research ANZAC Research Institute Sydney NSW Australia.,Sydney Medical School The University of Sydney Sydney NSW Australia
| | - Georgina J Clark
- Dendritic Cell Research ANZAC Research Institute Sydney NSW Australia.,Sydney Medical School The University of Sydney Sydney NSW Australia
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21
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Characterizing the Role of SMYD2 in Mammalian Embryogenesis-Future Directions. Vet Sci 2020; 7:vetsci7020063. [PMID: 32408548 PMCID: PMC7357037 DOI: 10.3390/vetsci7020063] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/09/2020] [Revised: 04/28/2020] [Accepted: 05/02/2020] [Indexed: 11/26/2022] Open
Abstract
The SET and MYND domain-containing (SMYD) family of lysine methyltransferases are essential in several mammalian developmental pathways. Although predominantly expressed in the heart, the role of SMYD2 in heart development has yet to be fully elucidated and has even been shown to be dispensable in a murine Nkx2-5-associated conditional knockout. Additionally, SMYD2 was recently shown to be necessary not only for lymphocyte development but also for the viability of hematopoietic leukemias. Based on the broad expression pattern of SMYD2 in mammalian tissues, it is likely that it plays pivotal roles in a host of additional normal and pathological processes. In this brief review, we consider what is currently known about the normal and pathogenic functions of SMYD2 and propose specific future directions for characterizing its role in embryogenesis.
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22
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Zhang PP, Wang YC, Cheng C, Zhang F, Ding DZ, Chen DK. Runt-related transcription factor 2 influences cell adhesion-mediated drug resistance and cell proliferation in B-cell non-Hodgkin's lymphoma and multiple myeloma. Leuk Res 2020; 92:106340. [PMID: 32182487 DOI: 10.1016/j.leukres.2020.106340] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/12/2019] [Revised: 02/20/2020] [Accepted: 03/06/2020] [Indexed: 11/27/2022]
Abstract
Several lines of evidence show that RUNX2 as a transcription factor is closely involved in carcinogenesis in a variety of human cancers. Cell adhesion-mediated drug resistance (CAM-DR) is an important part of the mechanism underlying drug resistance in hematological tumors. In this study, we investigated the biological function of RUNX2 in B-cell Non-Hodgkin's lymphoma (B-NHL) and multiple myeloma (MM). We assessed the expression of RUNX2 in suspension and adhesion model by western blot in B-NHL and MM. Adhesion assay, flow cytometry and CCK-8 were utilized to examine the role and mechanism of RUNX2 in CAM-DR and proliferation in B-NHL and MM. RUNX2 was highly expressed in adherent B-NHL and MM cells compared to suspension cells, and knockdown the expression of RUNX2 could reverse CAM-DR. Besides, RUNX2 could promote the proliferation of B-NHL and MM cells. Furthermore, RUNX2 participated the process of CAM-DR and proliferation by regulating the AKT/GSK-3β pathway. Developing RUNX2 inhibitor may be a possible strategy for drug resistance.
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Affiliation(s)
- Pei-Pei Zhang
- Department of Oncology, Tongzhou District People's Hospital, Nantong, Jiangsu, 226000, People's Republic of China
| | - Yu-Chan Wang
- Department of Pathogenic Biology, Medical College, Nantong University, Nantong, Jiangsu, 226001, People's Republic of China; Jiangsu Province Key Laboratory for Inflammation and Molecular Drug Target, Medical College of Nantong University, Nantong, Jiangsu, 226001, People's Republic of China
| | - Chun Cheng
- Jiangsu Province Key Laboratory for Inflammation and Molecular Drug Target, Medical College of Nantong University, Nantong, Jiangsu, 226001, People's Republic of China; Department of Immunity, Medical College, Nantong University, Nantong, Jiangsu, 226001, People's Republic of China
| | - Fei Zhang
- Department of Orthopaedics, Hongze District People's Hospital, Huaian, Jiangsu, 226000, People's Republic of China
| | - Da-Zhi Ding
- Department of Orthopaedics, Tongzhou District People's Hospital, Nantong, Jiangsu, 226000, People's Republic of China
| | - Da-Ke Chen
- Department of Oncology, Tongzhou District People's Hospital, Nantong, Jiangsu, 226000, People's Republic of China.
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23
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Brown MA, Edwards MA, Alshiraihi I, Geng H, Dekker JD, Tucker HO. The lysine methyltransferase SMYD2 is required for normal lymphocyte development and survival of hematopoietic leukemias. Genes Immun 2020; 21:119-130. [PMID: 32115575 PMCID: PMC7183909 DOI: 10.1038/s41435-020-0094-8] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/28/2019] [Revised: 02/18/2020] [Accepted: 02/19/2020] [Indexed: 12/11/2022]
Abstract
The 5 membered SET and MYND Domain-containing lysine methyltransferase (SMYD) family plays pivotal roles in development and proliferation. Initially characterized within the cardiovascular system, one such member, SMYD2, has been implicated as an oncogene in leukemias deriving from flawed hematopoietic stem cell (HSC) differentiation. We show here that conditional SMYD2 loss disrupts hematopoiesis at and downstream of the HSC via both apoptotic loss and transcriptional deregulation of HSC proliferation and disruption of Wnt-β-Catenin signaling. Yet previously documented SMYD2 cell cycle targets were unscathed. Turning our analysis to human leukemias, we observed that SMYD2 is highly expressed in CML, MLLr-B-ALL, AML, T-ALL and B-ALL leukemias and its levels in B-ALL correlate with poor survival. SMYD2 knockdown results in apoptotic death and loss of anchorage-independent transformation of each of these hematopoietic leukemias. These data provide an underlying mechanism by which SMYD2 acts during normal hematopoiesis and as a proto-oncogene in leukemia.
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Affiliation(s)
- Mark A Brown
- Department of Clinical Sciences, Colorado State University, Fort Collins, CO, 80523, USA.,Cell and Molecular Biology Program, Colorado State University, Fort Collins, CO, 80523, USA
| | - Melissa A Edwards
- Cell and Molecular Biology Program, Colorado State University, Fort Collins, CO, 80523, USA.,Department of Molecular Biosciences, The University of Texas at Austin, 1 University Station A5000, Austin, TX, 78712, USA
| | - Ilham Alshiraihi
- Cell and Molecular Biology Program, Colorado State University, Fort Collins, CO, 80523, USA
| | - Huimin Geng
- Department of Laboratory Medicine, University of California, San Francisco, San Francisco, CA, 94143, USA
| | - Joseph D Dekker
- Department of Molecular Biosciences, The University of Texas at Austin, 1 University Station A5000, Austin, TX, 78712, USA
| | - Haley O Tucker
- Department of Molecular Biosciences, The University of Texas at Austin, 1 University Station A5000, Austin, TX, 78712, USA.
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24
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Che H, Liu Y, Zhang M, Meng J, Feng X, Zhou J, Liang C. Integrated Analysis Revealed Prognostic Factors for Prostate Cancer Patients. Med Sci Monit 2019; 25:9991-10007. [PMID: 31876269 PMCID: PMC6944160 DOI: 10.12659/msm.918045] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022] Open
Abstract
BACKGROUND Prostate cancer (PCa) is one of the major causes of cancer-induced death among males. Here, we applied integrated bioinformatics analysis to identify key prognostic factors for PCa patients. MATERIAL AND METHODS The gene expression data were obtained from the UCSC Xena website. We calculated the differentially expressed genes between PCa tissues and normal controls. Pathway enrichment analyses found cell cycle-related pathways might play crucial roles during PCa tumorigenesis. The genes were assigned into 22 modules established via weighted gene co-expression network analysis (WGCNA). RESULTS The results indicated that the purple and red modules were obviously linked to the Gleason score, pathological N, pathological T, recurrence, and recurrence-free survival (RFS). In addition, Kaplan-Meier curve analysis found 8 modules were markedly correlated with RFS, serving as prognostic markers for PCa patients. Then, the hub genes in the most 2 critical modules (purple and red) were visualized by Cytoscape software. Pathway enrichment analyses confirmed the above findings that cell cycle-related pathways might play vital roles during PCa initiation and progression. Lastly, we randomly chose the PILRß (also termed PILRB) in the red module for clinical validation. The immunohistochemistry (IHC) results showed that PILRß was significantly increased in the high-risk PCa population compared with low-/middle-risk patients. CONCLUSIONS We used integrated bioinformatics approaches to identify hub genes that can serve as prognosis markers and potential treatment targets for PCa patients.
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Affiliation(s)
- Hong Che
- Department of Cardiac Surgery, The First Affiliated Hospital of Anhui Medical University, Hefei, Anhui, China (mainland)
| | - Yi Liu
- Department of Urology, The First Affiliated Hospital of Anhui Medical University and Institute of Urology and Anhui Province Key Laboratory of Genitourinary Diseases, Hefei, Anhui, China (mainland)
| | - Meng Zhang
- Department of Urology, The First Affiliated Hospital of Anhui Medical University and Institute of Urology and Anhui Province Key Laboratory of Genitourinary Diseases, Hefei, Anhui, China (mainland).,Urology Institute of Shenzhen University, The Third Affiliated Hospital of Shenzhen University, Shenzhen University, Shenzhen, Guangdong, China (mainland)
| | - Jialin Meng
- Department of Urology, The First Affiliated Hospital of Anhui Medical University and Institute of Urology and Anhui Province Key Laboratory of Genitourinary Diseases, Hefei, Anhui, China (mainland)
| | - Xingliang Feng
- Department of Urology, The First Affiliated Hospital of Anhui Medical University and Institute of Urology and Anhui Province Key Laboratory of Genitourinary Diseases, Hefei, Anhui, China (mainland)
| | - Jun Zhou
- Department of Urology, The First Affiliated Hospital of Anhui Medical University and Institute of Urology and Anhui Province Key Laboratory of Genitourinary Diseases, Hefei, Anhui, China (mainland)
| | - Chaozhao Liang
- Department of Urology, The First Affiliated Hospital of Anhui Medical University and Institute of Urology and Anhui Province Key Laboratory of Genitourinary Diseases, Hefei, Anhui, China (mainland)
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25
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Infectious stimuli promote malignant B-cell acute lymphoblastic leukemia in the absence of AID. Nat Commun 2019; 10:5563. [PMID: 31804490 PMCID: PMC6895129 DOI: 10.1038/s41467-019-13570-y] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/06/2019] [Accepted: 11/15/2019] [Indexed: 02/06/2023] Open
Abstract
The prerequisite to prevent childhood B-cell acute lymphoblastic leukemia (B-ALL) is to decipher its etiology. The current model suggests that infection triggers B-ALL development through induction of activation-induced cytidine deaminase (AID; also known as AICDA) in precursor B-cells. This evidence has been largely acquired through the use of ex vivo functional studies. However, whether this mechanism governs native non-transplant B-ALL development is unknown. Here we show that, surprisingly, AID genetic deletion does not affect B-ALL development in Pax5-haploinsufficient mice prone to B-ALL upon natural infection exposure. We next test the effect of premature AID expression from earliest pro-B-cell stages in B-cell transformation. The generation of AID off-target mutagenic activity in precursor B-cells does not promote B-ALL. Likewise, known drivers of human B-ALL are not preferentially targeted by AID. Overall these results suggest that infections promote B-ALL through AID-independent mechanisms, providing evidence for a new model of childhood B-ALL development. Infection or chronic inflammation is a risk factor for childhood B-cell precursor acute lymphoblastic leukemia. Here, the authors show that the DNA editing enzyme AID is expressed in infected B cells but using genetic mouse models show that it does not contribute to leukemia pathogenesis.
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26
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Eismann J, Heng YJ, Waldschmidt JM, Vlachos IS, Gray KP, Matulonis UA, Konstantinopoulos PA, Murphy CJ, Nabavi S, Wulf GM. Transcriptome analysis reveals overlap in fusion genes in a phase I clinical cohort of TNBC and HGSOC patients treated with buparlisib and olaparib. J Cancer Res Clin Oncol 2019; 146:503-514. [PMID: 31745703 PMCID: PMC6985087 DOI: 10.1007/s00432-019-03078-9] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/10/2019] [Accepted: 11/02/2019] [Indexed: 01/05/2023]
Abstract
PURPOSE Fusion genes can be therapeutically relevant if they result in constitutive activation of oncogenes or repression of tumor suppressors. However, the prevalence and role of fusion genes in female cancers remain largely unexplored. Here, we investigate the fusion gene landscape in triple-negative breast cancer (TNBC) and high-grade serous ovarian cancer (HGSOC), two subtypes of female cancers with high molecular similarity but limited treatment options at present. METHODS RNA-seq was utilized to identify fusion genes in a cohort of 18 TNBC and HGSOC patients treated with the PI3K inhibitor buparlisib and the PARP inhibitor olaparib in a phase I clinical trial (NCT01623349). Differential gene expression analysis was performed to assess the function of fusion genes in silico. Finally, these findings were correlated with the reported clinical outcomes. RESULTS A total of 156 fusion genes was detected, whereof 44/156 (28%) events occurred in more than one patient. Low recurrence across samples indicated that the majority of fusion genes were private passenger events. The long non-coding RNA MALAT1 was involved in 97/156 (62%) fusion genes, followed in prevalence by MUC16, FOXP1, WWOX and XIST. Gene expression of FOXP1 was significantly elevated in patients with vs. without FOXP1 fusion (P= 0.02). From a clinical perspective, FOXP1 fusions were associated with a favorable overall survival. CONCLUSIONS In summary, this study provides the first characterization of fusion genes in a cohort of TNBC and HGSOC patients. An improved mechanistic understanding of fusion genes will support the future identification of innovative therapeutic approaches for these challenging diseases.
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Affiliation(s)
- Julia Eismann
- Department of Hematology/Oncology, Beth Israel Deaconess Medical Center, Boston, MA, USA.,Harvard Medical School, Boston, MA, USA.,Department of Obstetrics and Gynecology, University Medical Center Freiburg, Freiburg, Germany
| | - Yujing J Heng
- Harvard Medical School, Boston, MA, USA.,Department of Pathology, Beth Israel Deaconess Medical Center, Boston, MA, USA
| | - Johannes M Waldschmidt
- Harvard Medical School, Boston, MA, USA.,Department of Medical Oncology, Dana-Farber Cancer Institute, Boston, MA, USA.,Broad Institute of MIT and Harvard, Cambridge, MA, USA
| | - Ioannis S Vlachos
- Harvard Medical School, Boston, MA, USA.,Department of Pathology, Beth Israel Deaconess Medical Center, Boston, MA, USA.,Broad Institute of MIT and Harvard, Cambridge, MA, USA
| | - Kathryn P Gray
- Harvard Medical School, Boston, MA, USA.,Biostatic Core, Dana-Farber Cancer Institute, Boston, MA, USA
| | - Ursula A Matulonis
- Harvard Medical School, Boston, MA, USA.,Department of Medical Oncology, Dana-Farber Cancer Institute, Boston, MA, USA
| | | | - Charles J Murphy
- Institute for Computational Biomedicine, Weill Cornell Medical College, New York, NY, USA
| | - Sheida Nabavi
- Department of Computer Science and Engineering, Institute of System Genomics, University of Connecticut, Storrs, USA
| | - Gerburg M Wulf
- Department of Hematology/Oncology, Beth Israel Deaconess Medical Center, Boston, MA, USA. .,Harvard Medical School, Boston, MA, USA.
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27
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Dunbar F, Xu H, Ryu D, Ghosh S, Shi H, George V. Detection of Differentially Methylated Regions Using Bayes Factor for Ordinal Group Responses. Genes (Basel) 2019; 10:genes10090721. [PMID: 31533352 PMCID: PMC6770971 DOI: 10.3390/genes10090721] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/19/2019] [Revised: 09/11/2019] [Accepted: 09/15/2019] [Indexed: 11/16/2022] Open
Abstract
Researchers in genomics are increasingly interested in epigenetic factors such as DNA methylation, because they play an important role in regulating gene expression without changes in the DNA sequence. There have been significant advances in developing statistical methods to detect differentially methylated regions (DMRs) associated with binary disease status. Most of these methods are being developed for detecting differential methylation rates between cases and controls. We consider multiple severity levels of disease, and develop a Bayesian statistical method to detect the region with increasing (or decreasing) methylation rates as the disease severity increases. Patients are classified into more than two groups, based on the disease severity (e.g., stages of cancer), and DMRs are detected by using moving windows along the genome. Within each window, the Bayes factor is calculated to test the hypothesis of monotonic increase in methylation rates corresponding to severity of the disease versus no difference. A mixed-effect model is used to incorporate the correlation of methylation rates of nearby CpG sites in the region. Results from extensive simulation indicate that our proposed method is statistically valid and reasonably powerful. We demonstrate our approach on a bisulfite sequencing dataset from a chronic lymphocytic leukemia (CLL) study.
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Affiliation(s)
- Fengjiao Dunbar
- Genomics Research Center, AbbVie, North Chicago, IL 60064, USA.
| | - Hongyan Xu
- Department of Population Health Sciences, Augusta University, Augusta, GA 30912, USA.
| | - Duchwan Ryu
- Department of Statistics and Actuarial Science, Northern Illinois University, DeKalb, IL 60178, USA.
| | - Santu Ghosh
- Department of Population Health Sciences, Augusta University, Augusta, GA 30912, USA.
| | - Huidong Shi
- Georgia Cancer Center, Augusta University, Augusta, GA 30912, USA.
| | - Varghese George
- Department of Population Health Sciences, Augusta University, Augusta, GA 30912, USA.
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28
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Li Z, Ju X, Silveira PA, Abadir E, Hsu WH, Hart DNJ, Clark GJ. CD83: Activation Marker for Antigen Presenting Cells and Its Therapeutic Potential. Front Immunol 2019; 10:1312. [PMID: 31231400 PMCID: PMC6568190 DOI: 10.3389/fimmu.2019.01312] [Citation(s) in RCA: 91] [Impact Index Per Article: 18.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/14/2019] [Accepted: 05/23/2019] [Indexed: 12/17/2022] Open
Abstract
CD83 is a member of the immunoglobulin (Ig) superfamily and is expressed in membrane bound or soluble forms. Membrane CD83 (mCD83) can be detected on a variety of activated immune cells, although it is most highly and stably expressed by mature dendritic cells (DC). mCD83 regulates maturation, activation and homeostasis. Soluble CD83 (sCD83), which is elevated in the serum of patients with autoimmune disease and some hematological malignancies is reported to have an immune suppressive function. While CD83 is emerging as a promising immune modulator with therapeutic potential, some important aspects such as its ligand/s, intracellular signaling pathways and modulators of its expression are unclear. In this review we discuss the recent biological findings and the potential clinical value of CD83 based therapeutics in various conditions including autoimmune disease, graft-vs.-host disease, transplantation and hematological malignancies.
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Affiliation(s)
- Ziduo Li
- Dendritic Cell Research, ANZAC Research Institute, Sydney, NSW, Australia
- Sydney Medical School, The University of Sydney, Sydney, NSW, Australia
| | - Xinsheng Ju
- Dendritic Cell Research, ANZAC Research Institute, Sydney, NSW, Australia
- Sydney Medical School, The University of Sydney, Sydney, NSW, Australia
| | - Pablo A. Silveira
- Dendritic Cell Research, ANZAC Research Institute, Sydney, NSW, Australia
- Sydney Medical School, The University of Sydney, Sydney, NSW, Australia
| | - Edward Abadir
- Dendritic Cell Research, ANZAC Research Institute, Sydney, NSW, Australia
- Sydney Medical School, The University of Sydney, Sydney, NSW, Australia
| | - Wei-Hsun Hsu
- Dendritic Cell Research, ANZAC Research Institute, Sydney, NSW, Australia
- Sydney Medical School, The University of Sydney, Sydney, NSW, Australia
| | - Derek N. J. Hart
- Dendritic Cell Research, ANZAC Research Institute, Sydney, NSW, Australia
- Sydney Medical School, The University of Sydney, Sydney, NSW, Australia
| | - Georgina J. Clark
- Dendritic Cell Research, ANZAC Research Institute, Sydney, NSW, Australia
- Sydney Medical School, The University of Sydney, Sydney, NSW, Australia
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29
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The phosphatase UBASH3B/Sts-1 is a negative regulator of Bcr-Abl kinase activity and leukemogenesis. Leukemia 2019; 33:2319-2323. [PMID: 30962580 PMCID: PMC6756289 DOI: 10.1038/s41375-019-0468-y] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/15/2019] [Revised: 03/20/2019] [Accepted: 03/22/2019] [Indexed: 01/15/2023]
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30
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Machado-Neto JA, Fenerich BA, Rodrigues Alves APN, Fernandes JC, Scopim-Ribeiro R, Coelho-Silva JL, Traina F. Insulin Substrate Receptor (IRS) proteins in normal and malignant hematopoiesis. Clinics (Sao Paulo) 2018; 73:e566s. [PMID: 30328953 PMCID: PMC6169455 DOI: 10.6061/clinics/2018/e566s] [Citation(s) in RCA: 29] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/10/2018] [Accepted: 07/30/2018] [Indexed: 12/31/2022] Open
Abstract
The insulin receptor substrate (IRS) proteins are a family of cytoplasmic proteins that integrate and coordinate the transmission of signals from the extracellular to the intracellular environment via transmembrane receptors, thus regulating cell growth, metabolism, survival and proliferation. The PI3K/AKT/mTOR and MAPK signaling pathways are the best-characterized downstream signaling pathways activated by IRS signaling (canonical pathways). However, novel signaling axes involving IRS proteins (noncanonical pathways) have recently been identified in solid tumor and hematologic neoplasm models. Insulin receptor substrate-1 (IRS1) and insulin receptor substrate-2 (IRS2) are the best-characterized IRS proteins in hematologic-related processes. IRS2 binds to important cellular receptors involved in normal hematopoiesis (EPOR, MPL and IGF1R). Moreover, the identification of IRS1/ABL1 and IRS2/JAK2V617F interactions and their functional consequences has opened a new frontier for investigating the roles of the IRS protein family in malignant hematopoiesis. Insulin receptor substrate-4 (IRS4) is absent in normal hematopoietic tissues but may be expressed under abnormal conditions. Moreover, insulin receptor substrate-5 (DOK4) and insulin receptor substrate-6 (DOK5) are linked to lymphocyte regulation. An improved understanding of the signaling pathways mediated by IRS proteins in hematopoiesis-related processes, along with the increased development of agonists and antagonists of these signaling axes, may generate new therapeutic approaches for hematological diseases. The scope of this review is to recapitulate and review the evidence for the functions of IRS proteins in normal and malignant hematopoiesis.
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Affiliation(s)
- João Agostinho Machado-Neto
- Departamento de Medicina Interna, Faculdade de Medicina de Ribeirao Preto, Universidade de Sao Paulo, Ribeirao Preto, Sao Paulo, SP, BR
- Departamento de Farmacologia do Instituto de Ciencias Biomedicas da Universidade de Sao Paulo, Sao Paulo, SP, BR
| | - Bruna Alves Fenerich
- Departamento de Medicina Interna, Faculdade de Medicina de Ribeirao Preto, Universidade de Sao Paulo, Ribeirao Preto, Sao Paulo, SP, BR
| | - Ana Paula Nunes Rodrigues Alves
- Departamento de Medicina Interna, Faculdade de Medicina de Ribeirao Preto, Universidade de Sao Paulo, Ribeirao Preto, Sao Paulo, SP, BR
| | - Jaqueline Cristina Fernandes
- Departamento de Medicina Interna, Faculdade de Medicina de Ribeirao Preto, Universidade de Sao Paulo, Ribeirao Preto, Sao Paulo, SP, BR
| | - Renata Scopim-Ribeiro
- Departamento de Medicina Interna, Faculdade de Medicina de Ribeirao Preto, Universidade de Sao Paulo, Ribeirao Preto, Sao Paulo, SP, BR
| | - Juan Luiz Coelho-Silva
- Departamento de Medicina Interna, Faculdade de Medicina de Ribeirao Preto, Universidade de Sao Paulo, Ribeirao Preto, Sao Paulo, SP, BR
| | - Fabiola Traina
- Departamento de Medicina Interna, Faculdade de Medicina de Ribeirao Preto, Universidade de Sao Paulo, Ribeirao Preto, Sao Paulo, SP, BR
- *Corresponding author. E-mail:
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31
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Hjort MA, Abdollahi P, Vandsemb EN, Fenstad MH, Lund B, Slørdahl TS, Børset M, Rø TB. Phosphatase of regenerating liver-3 is expressed in acute lymphoblastic leukemia and mediates leukemic cell adhesion, migration and drug resistance. Oncotarget 2017; 9:3549-3561. [PMID: 29423065 PMCID: PMC5790482 DOI: 10.18632/oncotarget.23186] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/11/2017] [Accepted: 12/01/2017] [Indexed: 11/25/2022] Open
Abstract
Phosphatase of regenerating liver-3 (PRL-3/PTP4A3) is upregulated in multiple cancers, including BCR-ABL1- and ETV6-RUNX-positive acute lymphoblastic leukemia (ALL). With this study, we aim to characterize the biological role of PRL-3 in B cell ALL (B-ALL). Here, we demonstrate that PRL-3 expression at mRNA and protein level was higher in B-ALL cells than in normal cells, as measured by qRT-PCR or flow cytometry. Further, we demonstrate that inhibition of PRL-3 using shRNA or a small molecular inhibitor reduced cell migration towards an SDF-1α gradient in the preB-ALL cell lines Reh and MHH-CALL-4. Knockdown of PRL-3 also reduced cell adhesion towards fibronectin in Reh cells. Mechanistically, PRL-3 mediated SDF-1α stimulated calcium release, and activated focal adhesion kinase (FAK) and Src, important effectors of migration and adhesion. Finally, PRL-3 expression made Reh cells more resistance to cytarabine treatment. In conclusion, the expression level of PRL-3 was higher in B-ALL cells than in normal cells. PRL-3 promoted adhesion, migration and resistance to cytarabine. PRL-3 may represent a novel target in the treatment of B-ALL.
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Affiliation(s)
- Magnus A Hjort
- Department of Clinical and Molecular Medicine, Norwegian University of Science and Technology, Trondheim, Norway.,Children's Clinic, St. Olavs Hospital, Trondheim University Hospital, Trondheim, Norway
| | - Pegah Abdollahi
- Department of Clinical and Molecular Medicine, Norwegian University of Science and Technology, Trondheim, Norway.,Department of Immunology and Transfusion Medicine, St. Olavs Hospital, Trondheim University Hospital, Trondheim, Norway
| | - Esten N Vandsemb
- Department of Clinical and Molecular Medicine, Norwegian University of Science and Technology, Trondheim, Norway.,Department of Immunology and Transfusion Medicine, St. Olavs Hospital, Trondheim University Hospital, Trondheim, Norway
| | - Mona H Fenstad
- Department of Clinical and Molecular Medicine, Norwegian University of Science and Technology, Trondheim, Norway.,Department of Immunology and Transfusion Medicine, St. Olavs Hospital, Trondheim University Hospital, Trondheim, Norway
| | - Bendik Lund
- Department of Clinical and Molecular Medicine, Norwegian University of Science and Technology, Trondheim, Norway.,Children's Clinic, St. Olavs Hospital, Trondheim University Hospital, Trondheim, Norway
| | - Tobias S Slørdahl
- Department of Clinical and Molecular Medicine, Norwegian University of Science and Technology, Trondheim, Norway.,Department of Hematology, St. Olavs Hospital, Trondheim University Hospital, Trondheim, Norway
| | - Magne Børset
- Department of Clinical and Molecular Medicine, Norwegian University of Science and Technology, Trondheim, Norway.,Department of Immunology and Transfusion Medicine, St. Olavs Hospital, Trondheim University Hospital, Trondheim, Norway
| | - Torstein B Rø
- Department of Clinical and Molecular Medicine, Norwegian University of Science and Technology, Trondheim, Norway.,Children's Clinic, St. Olavs Hospital, Trondheim University Hospital, Trondheim, Norway
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Witkowski MT, Hu Y, Roberts KG, Boer JM, McKenzie MD, Liu GJ, Le Grice OD, Tremblay CS, Ghisi M, Willson TA, Horstmann MA, Aifantis I, Cimmino L, Frietze S, den Boer ML, Mullighan CG, Smyth GK, Dickins RA. Conserved IKAROS-regulated genes associated with B-progenitor acute lymphoblastic leukemia outcome. J Exp Med 2017; 214:773-791. [PMID: 28190000 PMCID: PMC5339666 DOI: 10.1084/jem.20160048] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/12/2016] [Revised: 10/05/2016] [Accepted: 12/19/2016] [Indexed: 12/31/2022] Open
Abstract
Genetic alterations disrupting the transcription factor IKZF1 (encoding IKAROS) are associated with poor outcome in B lineage acute lymphoblastic leukemia (B-ALL) and occur in >70% of the high-risk BCR-ABL1+ (Ph+) and Ph-like disease subtypes. To examine IKAROS function in this context, we have developed novel mouse models allowing reversible RNAi-based control of Ikaros expression in established B-ALL in vivo. Notably, leukemias driven by combined BCR-ABL1 expression and Ikaros suppression rapidly regress when endogenous Ikaros is restored, causing sustained disease remission or ablation. Comparison of transcriptional profiles accompanying dynamic Ikaros perturbation in murine B-ALL in vivo with two independent human B-ALL cohorts identified nine evolutionarily conserved IKAROS-repressed genes. Notably, high expression of six of these genes is associated with inferior event-free survival in both patient cohorts. Among them are EMP1, which was recently implicated in B-ALL proliferation and prednisolone resistance, and the novel target CTNND1, encoding P120-catenin. We demonstrate that elevated Ctnnd1 expression contributes to maintenance of murine B-ALL cells with compromised Ikaros function. These results suggest that IKZF1 alterations in B-ALL leads to induction of multiple genes associated with proliferation and treatment resistance, identifying potential new therapeutic targets for high-risk disease.
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Affiliation(s)
- Matthew T Witkowski
- Australian Centre for Blood Diseases, Monash University, Melbourne, Victoria 3004, Australia.,Molecular Medicine Division, Walter and Eliza Hall Institute of Medical Research, Victoria, Australia.,Department of Medical Biology, University of Melbourne, Parkville 3010, Victoria, Australia
| | - Yifang Hu
- Bioinformatics Division, Walter and Eliza Hall Institute of Medical Research, Victoria, Australia
| | - Kathryn G Roberts
- Department of Pathology, St. Jude Children's Research Hospital, Memphis, TN 38105
| | - Judith M Boer
- Department of Pediatric Oncology, Erasmus MC - Sophia Children's Hospital, 3015 CN Rotterdam, Netherlands
| | - Mark D McKenzie
- Molecular Medicine Division, Walter and Eliza Hall Institute of Medical Research, Victoria, Australia.,Department of Medical Biology, University of Melbourne, Parkville 3010, Victoria, Australia
| | - Grace J Liu
- Australian Centre for Blood Diseases, Monash University, Melbourne, Victoria 3004, Australia.,Molecular Medicine Division, Walter and Eliza Hall Institute of Medical Research, Victoria, Australia.,Department of Medical Biology, University of Melbourne, Parkville 3010, Victoria, Australia
| | - Oliver D Le Grice
- Australian Centre for Blood Diseases, Monash University, Melbourne, Victoria 3004, Australia.,Molecular Medicine Division, Walter and Eliza Hall Institute of Medical Research, Victoria, Australia
| | - Cedric S Tremblay
- Australian Centre for Blood Diseases, Monash University, Melbourne, Victoria 3004, Australia
| | - Margherita Ghisi
- Australian Centre for Blood Diseases, Monash University, Melbourne, Victoria 3004, Australia
| | - Tracy A Willson
- Molecular Medicine Division, Walter and Eliza Hall Institute of Medical Research, Victoria, Australia
| | - Martin A Horstmann
- Research Institute Children's Cancer Center, Department of Pediatric Hematology and Oncology, University Medical Center Hamburg, 20246 Hamburg, Germany
| | - Iannis Aifantis
- Department of Pathology, NYU School of Medicine, New York, NY 10016
| | - Luisa Cimmino
- Department of Pathology, NYU School of Medicine, New York, NY 10016
| | - Seth Frietze
- Department of Medical Laboratory and Radiation Science, University of Vermont, Burlington, VT 05405
| | - Monique L den Boer
- Department of Pediatric Oncology, Erasmus MC - Sophia Children's Hospital, 3015 CN Rotterdam, Netherlands.,Dutch Childhood Oncology Group, 2545 The Hague, Netherlands
| | - Charles G Mullighan
- Department of Pathology, St. Jude Children's Research Hospital, Memphis, TN 38105
| | - Gordon K Smyth
- Bioinformatics Division, Walter and Eliza Hall Institute of Medical Research, Victoria, Australia.,Department of Mathematics and Statistics, University of Melbourne, Parkville 3010, Victoria, Australia
| | - Ross A Dickins
- Australian Centre for Blood Diseases, Monash University, Melbourne, Victoria 3004, Australia .,Molecular Medicine Division, Walter and Eliza Hall Institute of Medical Research, Victoria, Australia.,Department of Medical Biology, University of Melbourne, Parkville 3010, Victoria, Australia
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Schjerven H, Ayongaba EF, Aghajanirefah A, McLaughlin J, Cheng D, Geng H, Boyd JR, Eggesbø LM, Lindeman I, Heath JL, Park E, Witte ON, Smale ST, Frietze S, Müschen M. Genetic analysis of Ikaros target genes and tumor suppressor function in BCR-ABL1 + pre-B ALL. J Exp Med 2017; 214:793-814. [PMID: 28190001 PMCID: PMC5339667 DOI: 10.1084/jem.20160049] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/12/2016] [Revised: 10/03/2016] [Accepted: 01/12/2017] [Indexed: 01/19/2023] Open
Abstract
Schjerven et al. compare mouse and human models of pre–B ALL to define conserved target genes and pathways of the tumor suppressor Ikaros, revealing CTNND1 and the early hematopoietic cell-surface receptors SPN (CD43) and CD34 as novel Ikaros targets that each confer oncogenic growth advantage. Inactivation of the tumor suppressor gene encoding the transcriptional regulator Ikaros (IKZF1) is a hallmark of BCR-ABL1+ precursor B cell acute lymphoblastic leukemia (pre–B ALL). However, the mechanisms by which Ikaros functions as a tumor suppressor in pre–B ALL remain poorly understood. Here, we analyzed a mouse model of BCR-ABL1+ pre–B ALL together with a new model of inducible expression of wild-type Ikaros in IKZF1 mutant human BCR-ABL1+ pre–B ALL. We performed integrated genome-wide chromatin and expression analyses and identified Ikaros target genes in mouse and human BCR-ABL1+ pre–B ALL, revealing novel conserved gene pathways associated with Ikaros tumor suppressor function. Notably, genetic depletion of different Ikaros targets, including CTNND1 and the early hematopoietic cell surface marker CD34, resulted in reduced leukemic growth. Our results suggest that Ikaros mediates tumor suppressor function by enforcing proper developmental stage–specific expression of multiple genes through chromatin compaction at its target genes.
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Affiliation(s)
- Hilde Schjerven
- Department of Laboratory Medicine, University of California, San Francisco, CA 94143
| | - Etapong F Ayongaba
- Department of Laboratory Medicine, University of California, San Francisco, CA 94143.,Department of Biosciences, University of Oslo, 0316 Oslo, Norway
| | - Ali Aghajanirefah
- Department of Laboratory Medicine, University of California, San Francisco, CA 94143
| | - Jami McLaughlin
- Department of Microbiology, Immunology, and Molecular Genetics, University of California, Los Angeles, CA 90095
| | - Donghui Cheng
- Eli and Edythe Broad Center of Regenerative Medicine and Stem Cell Research, University of California, Los Angeles, CA 90095
| | - Huimin Geng
- Department of Laboratory Medicine, University of California, San Francisco, CA 94143
| | - Joseph R Boyd
- Department of Biochemistry and University of Vermont Cancer Center, University of Vermont, Burlington, VT 05405
| | - Linn M Eggesbø
- Department of Laboratory Medicine, University of California, San Francisco, CA 94143.,Department of Biosciences, University of Oslo, 0316 Oslo, Norway
| | - Ida Lindeman
- Department of Laboratory Medicine, University of California, San Francisco, CA 94143.,Department of Biosciences, University of Oslo, 0316 Oslo, Norway
| | - Jessica L Heath
- Department of Pediatrics, University of Vermont, Burlington, VT 05405.,Department of Biochemistry, University of Vermont, Burlington, VT 05405
| | - Eugene Park
- Department of Laboratory Medicine, University of California, San Francisco, CA 94143
| | - Owen N Witte
- Department of Microbiology, Immunology, and Molecular Genetics, University of California, Los Angeles, CA 90095.,Eli and Edythe Broad Center of Regenerative Medicine and Stem Cell Research, University of California, Los Angeles, CA 90095.,Molecular Biology Institute, University of California, Los Angeles, CA 90095
| | - Stephen T Smale
- Department of Microbiology, Immunology, and Molecular Genetics, University of California, Los Angeles, CA 90095.,Eli and Edythe Broad Center of Regenerative Medicine and Stem Cell Research, University of California, Los Angeles, CA 90095.,Molecular Biology Institute, University of California, Los Angeles, CA 90095
| | - Seth Frietze
- Department of Medical Laboratory and Radiation Science, University of Vermont, Burlington, VT 05405
| | - Markus Müschen
- Department of Systems Biology, Beckman Research Institute and City of Hope Comprehensive Cancer Center, Pasadena, CA 91016
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Overexpression of PTP4A3 in ETV6-RUNX1 acute lymphoblastic leukemia. Leuk Res 2016; 54:1-6. [PMID: 28063378 DOI: 10.1016/j.leukres.2016.12.005] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/03/2016] [Revised: 10/25/2016] [Accepted: 12/18/2016] [Indexed: 11/21/2022]
Abstract
Cell signalling, which is often derailed in cancer, is a network of multiple interconnected pathways with numerous feedback mechanisms. Dynamics of cell signalling is intimately regulated by addition and removal of phosphate groups by kinases and phosphatases. We examined expression of members of the PTP4A family of phosphatases across acute leukemias. While expression of PTP4A1 and PTP4A2 remained relatively unchanged across diseases, PTP4A3 showed marked overexpression in ETV6-RUNX1 and BCR-ABL1 subtypes of precursor B cell acute lymphoblastic leukemia. We show that PTP4A3 is regulated by the ETV6-RUNX1 fusion, but noticed no marked impact on cell viability either after PTP4A3 silencing or treatment with a PTP4A3 inhibitor. Regulation of PTP4A3 expression is altered in specific subgroups of acute leukemias and this is likely brought about by expression of the aberrant fusion genes.
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35
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36
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Ye W, Jiang Z, Lu X, Ren X, Deng M, Lin S, Xiao Y, Lin S, Wang S, Li B, Zheng Y, Lai P, Weng J, Wu D, Ma Y, Chen X, Wen Z, Chen Y, Feng X, Li Y, Liu P, Du X, Pei D, Yao Y, Xu B, Ding K, Li P. GZD824 suppresses the growth of human B cell precursor acute lymphoblastic leukemia cells by inhibiting the SRC kinase and PI3K/AKT pathways. Oncotarget 2016; 8:87002-87015. [PMID: 29152059 PMCID: PMC5675611 DOI: 10.18632/oncotarget.10881] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/27/2016] [Accepted: 06/09/2016] [Indexed: 01/13/2023] Open
Abstract
Available therapeutic options for advanced B cell precursor acute lymphoblastic leukemia (pre-B ALL) are limited. Many lead to neutropenia, leaving patients at risk of life-threatening infections and result in bad outcomes. New treatment options are needed to improve overall survival. We previously showed that GZD824, a novel BCR-ABL tyrosine kinase inhibitor, has anti-tumor activity in Philadelphia chromosome-positive (Ph+) chronic myeloid leukemia cells and tumor models. Here, we show that GZD824 decreases cell viability, induces cell-cycle arrest, and causes apoptosis in pre-B ALL cells. Furthermore, Ph– pre-B ALL cells were more sensitive to GZD824 than Ph+ pre-B ALL cells. GZD824 consistently reduced tumor loads in Ph– pre-B ALL xenografts but failed to suppress Ph+ pre-B ALL xenografts. GZD824 decreased phosphorylation of SRC kinase, STAT3, RB and C-myc. It also downregulated the expression of BCL-XL, CCND1 and CDK4 and upregulated expression of CCKN1A. Expression of IRS1 was decreased in GZD824-treated pre-B ALL cells, blocking the PI3K/AKT pathway. These data demonstrate that GZD824 suppresses pre-B ALL cells through inhibition of the SRC kinase and PI3K/AKT pathways and may be a potential therapeutic agent for the management of pre-B ALL.
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Affiliation(s)
- Wei Ye
- School of Life Science, University of Science and Technology of China, Anhui, China.,State Key Laboratory of Respiratory Disease, Guangzhou Institutes of Biomedicine and Health, Chinese Academy of Sciences, Guangzhou, China.,Key Laboratory of Regenerative Biology, South China Institute for Stem Cell Biology and Regenerative Medicine, Guangzhou Institutes of Biomedicine and Health, Chinese Academy of Sciences, Guangzhou, China.,Guangdong Provincial Key Laboratory of Stem Cell and Regenerative Medicine, South China Institute for Stem Cell Biology and Regenerative Medicine, Guangzhou Institutes of Biomedicine and Health, Chinese Academy of Sciences, Guangzhou, China
| | - Zhiwu Jiang
- State Key Laboratory of Respiratory Disease, Guangzhou Institutes of Biomedicine and Health, Chinese Academy of Sciences, Guangzhou, China.,Key Laboratory of Regenerative Biology, South China Institute for Stem Cell Biology and Regenerative Medicine, Guangzhou Institutes of Biomedicine and Health, Chinese Academy of Sciences, Guangzhou, China.,Guangdong Provincial Key Laboratory of Stem Cell and Regenerative Medicine, South China Institute for Stem Cell Biology and Regenerative Medicine, Guangzhou Institutes of Biomedicine and Health, Chinese Academy of Sciences, Guangzhou, China
| | - Xiaoyun Lu
- State Key Laboratory of Respiratory Disease, Guangzhou Institutes of Biomedicine and Health, Chinese Academy of Sciences, Guangzhou, China
| | - Xiaomei Ren
- State Key Laboratory of Respiratory Disease, Guangzhou Institutes of Biomedicine and Health, Chinese Academy of Sciences, Guangzhou, China
| | - Manman Deng
- Department of Hematology, The First Affiliated Hospital of Xiamen University, Xiamen, China
| | - Shouheng Lin
- State Key Laboratory of Respiratory Disease, Guangzhou Institutes of Biomedicine and Health, Chinese Academy of Sciences, Guangzhou, China.,Key Laboratory of Regenerative Biology, South China Institute for Stem Cell Biology and Regenerative Medicine, Guangzhou Institutes of Biomedicine and Health, Chinese Academy of Sciences, Guangzhou, China.,Guangdong Provincial Key Laboratory of Stem Cell and Regenerative Medicine, South China Institute for Stem Cell Biology and Regenerative Medicine, Guangzhou Institutes of Biomedicine and Health, Chinese Academy of Sciences, Guangzhou, China
| | - Yiren Xiao
- State Key Laboratory of Respiratory Disease, Guangzhou Institutes of Biomedicine and Health, Chinese Academy of Sciences, Guangzhou, China.,Key Laboratory of Regenerative Biology, South China Institute for Stem Cell Biology and Regenerative Medicine, Guangzhou Institutes of Biomedicine and Health, Chinese Academy of Sciences, Guangzhou, China.,Guangdong Provincial Key Laboratory of Stem Cell and Regenerative Medicine, South China Institute for Stem Cell Biology and Regenerative Medicine, Guangzhou Institutes of Biomedicine and Health, Chinese Academy of Sciences, Guangzhou, China
| | - Simiao Lin
- State Key Laboratory of Respiratory Disease, Guangzhou Institutes of Biomedicine and Health, Chinese Academy of Sciences, Guangzhou, China.,Key Laboratory of Regenerative Biology, South China Institute for Stem Cell Biology and Regenerative Medicine, Guangzhou Institutes of Biomedicine and Health, Chinese Academy of Sciences, Guangzhou, China.,Guangdong Provincial Key Laboratory of Stem Cell and Regenerative Medicine, South China Institute for Stem Cell Biology and Regenerative Medicine, Guangzhou Institutes of Biomedicine and Health, Chinese Academy of Sciences, Guangzhou, China
| | - Suna Wang
- State Key Laboratory of Respiratory Disease, Guangzhou Institutes of Biomedicine and Health, Chinese Academy of Sciences, Guangzhou, China.,Key Laboratory of Regenerative Biology, South China Institute for Stem Cell Biology and Regenerative Medicine, Guangzhou Institutes of Biomedicine and Health, Chinese Academy of Sciences, Guangzhou, China.,Guangdong Provincial Key Laboratory of Stem Cell and Regenerative Medicine, South China Institute for Stem Cell Biology and Regenerative Medicine, Guangzhou Institutes of Biomedicine and Health, Chinese Academy of Sciences, Guangzhou, China
| | - Baiheng Li
- State Key Laboratory of Respiratory Disease, Guangzhou Institutes of Biomedicine and Health, Chinese Academy of Sciences, Guangzhou, China.,Key Laboratory of Regenerative Biology, South China Institute for Stem Cell Biology and Regenerative Medicine, Guangzhou Institutes of Biomedicine and Health, Chinese Academy of Sciences, Guangzhou, China.,Guangdong Provincial Key Laboratory of Stem Cell and Regenerative Medicine, South China Institute for Stem Cell Biology and Regenerative Medicine, Guangzhou Institutes of Biomedicine and Health, Chinese Academy of Sciences, Guangzhou, China
| | - Yi Zheng
- State Key Laboratory of Respiratory Disease, Guangzhou Institutes of Biomedicine and Health, Chinese Academy of Sciences, Guangzhou, China.,Key Laboratory of Regenerative Biology, South China Institute for Stem Cell Biology and Regenerative Medicine, Guangzhou Institutes of Biomedicine and Health, Chinese Academy of Sciences, Guangzhou, China.,Guangdong Provincial Key Laboratory of Stem Cell and Regenerative Medicine, South China Institute for Stem Cell Biology and Regenerative Medicine, Guangzhou Institutes of Biomedicine and Health, Chinese Academy of Sciences, Guangzhou, China
| | - Peilong Lai
- Department of Hematology, Guangdong Provincial People's Hospital, Guangzhou, China
| | - Jianyu Weng
- Department of Hematology, Guangdong Provincial People's Hospital, Guangzhou, China
| | - Donghai Wu
- Key Laboratory of Regenerative Biology, South China Institute for Stem Cell Biology and Regenerative Medicine, Guangzhou Institutes of Biomedicine and Health, Chinese Academy of Sciences, Guangzhou, China.,Guangdong Provincial Key Laboratory of Stem Cell and Regenerative Medicine, South China Institute for Stem Cell Biology and Regenerative Medicine, Guangzhou Institutes of Biomedicine and Health, Chinese Academy of Sciences, Guangzhou, China
| | - Yuguo Ma
- Yikang Tailai Technology Co. Ltd, Guangzhou, China
| | - Xudong Chen
- Department of Interventional Radiology, Shenzhen People's Hospital, Shenzhen, China
| | - Zhesheng Wen
- Department of Thoracic Oncology, Sun Yat-Sen University Cancer Center, Guangzhou, China
| | - Yaoyu Chen
- First Affiliated Hospital of Nanjing Medical University, Jiangsu Province Hospital, Nanjing, China
| | - Xiaoyan Feng
- Chongqing HiChuang Biomedical Corp., Chongqing, China
| | - Yangqiu Li
- Department of Hematology, Medical College, Jinan University, Guangzhou, China.,Key Laboratory for Regenerative Medicine of Ministry of Education, Jinan University, Guangzhou, China
| | - Pentao Liu
- Wellcome Trust Sanger Institute, Hinxton, Cambridge CB10 1HH, England, UK
| | - Xin Du
- Department of Hematology, Guangdong Provincial People's Hospital, Guangzhou, China
| | - Duanqing Pei
- Key Laboratory of Regenerative Biology, South China Institute for Stem Cell Biology and Regenerative Medicine, Guangzhou Institutes of Biomedicine and Health, Chinese Academy of Sciences, Guangzhou, China.,Guangdong Provincial Key Laboratory of Stem Cell and Regenerative Medicine, South China Institute for Stem Cell Biology and Regenerative Medicine, Guangzhou Institutes of Biomedicine and Health, Chinese Academy of Sciences, Guangzhou, China
| | - Yao Yao
- Drug Discovery Pipeline, Guangzhou Institutes of Biomedicine and Health, Chinese Academy of Sciences, Guangzhou, China
| | - Bing Xu
- Department of Hematology, The First Affiliated Hospital of Xiamen University, Xiamen, China
| | - Ke Ding
- State Key Laboratory of Respiratory Disease, Guangzhou Institutes of Biomedicine and Health, Chinese Academy of Sciences, Guangzhou, China
| | - Peng Li
- State Key Laboratory of Respiratory Disease, Guangzhou Institutes of Biomedicine and Health, Chinese Academy of Sciences, Guangzhou, China.,Key Laboratory of Regenerative Biology, South China Institute for Stem Cell Biology and Regenerative Medicine, Guangzhou Institutes of Biomedicine and Health, Chinese Academy of Sciences, Guangzhou, China.,Guangdong Provincial Key Laboratory of Stem Cell and Regenerative Medicine, South China Institute for Stem Cell Biology and Regenerative Medicine, Guangzhou Institutes of Biomedicine and Health, Chinese Academy of Sciences, Guangzhou, China
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Vieri M, Geng H, Patterson JB, Panse J, Wilop S, Samali A, Chevet E, Kharabi Masouleh B. Deregulated expression of the HSP40 family members Auxilin-1 and -2 is indicative of proteostasis imbalance and predicts patient outcome in Ph(+) leukemia. Exp Hematol Oncol 2016; 5:5. [PMID: 26862466 PMCID: PMC4746784 DOI: 10.1186/s40164-016-0034-5] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/10/2015] [Accepted: 02/02/2016] [Indexed: 11/30/2022] Open
Abstract
Background Proteostasis is defined by the orchestrated control of anabolic and catabolic protein pathways. Disruption of proteostasis results in cell stress and adaptation to proteostasis imbalance is mediated by adaptive pathways such as the Heat Shock Response (including heat-shock proteins) or the unfolded protein response (UPR). The BCR-ABL1 kinase (Philadelphia chromosome) is the hallmark of chronic myeloid leukemia (CML) and defines a historically poor subset in acute lymphoblastic leukemia (Ph+ ALL). We previously demonstrated the importance of the UPR and particularly of the IRE1/XBP1 signaling axis in Ph+ ALL, while others demonstrated the therapeutic relevance of HSP70 in ALL. In this regard, HSP70 is regulated by smaller HSP40 s, whose function is so far poorly characterized. Results Herein, we characterize the expression of HSP40 s in Ph+ ALL and CML. We show that these genes are not regulated in a pan-class manner and identify a homologous gene pair, namely Auxilin-1 (DNAJC6) and Auxilin-2 (GAK) with a unique expression profile. Overexpression of Auxilin-2, the ubiquitously expressed homologue of Auxilin-1 correlated with superior clinical outcome in ALL and was tightly linked to both IRE1 RNase and BCR-ABL1 kinase activities. Conclusions Our findings suggest that HSP40 gens are uniquely regulated and provide a rationale for further studies between BCR-ABL1/IRE1-based therapies in combination with HSP40 inhibitors, thus opening potentially novel therapeutic avenues. Electronic supplementary material The online version of this article (doi:10.1186/s40164-016-0034-5) contains supplementary material, which is available to authorized users.
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Affiliation(s)
- Margherita Vieri
- Department of Hematology, Oncology, Hemostaseology and Stem Cell Transplantation, Medical Faculty, RWTH Aachen University, Aachen, Germany
| | - Huimin Geng
- Department of Laboratory Medicine, University of California San Francisco, San Francisco, CA 94143 USA
| | | | - Jens Panse
- Department of Hematology, Oncology, Hemostaseology and Stem Cell Transplantation, Medical Faculty, RWTH Aachen University, Aachen, Germany
| | - Stefan Wilop
- Department of Hematology, Oncology, Hemostaseology and Stem Cell Transplantation, Medical Faculty, RWTH Aachen University, Aachen, Germany
| | - Afshin Samali
- Apoptosis Research Centre, National University of Ireland, Galway, Ireland ; Department of Biochemistry, National University of Ireland, Galway, Ireland
| | - Eric Chevet
- INSERM ERL440, Oncogenesis, Stress and Signaling, Université Rennes 1, Rennes, France ; Centre de Lutte Contre Le Cancer Eugène Marquis, Rennes, France
| | - Behzad Kharabi Masouleh
- Department of Hematology, Oncology, Hemostaseology and Stem Cell Transplantation, Medical Faculty, RWTH Aachen University, Aachen, Germany
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Wysokinski D, Blasiak J, Pawlowska E. Role of RUNX2 in Breast Carcinogenesis. Int J Mol Sci 2015; 16:20969-93. [PMID: 26404249 PMCID: PMC4613236 DOI: 10.3390/ijms160920969] [Citation(s) in RCA: 32] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/30/2015] [Revised: 08/14/2015] [Accepted: 08/20/2015] [Indexed: 12/12/2022] Open
Abstract
RUNX2 is a transcription factor playing the major role in osteogenesis, but it can be involved in DNA damage response, which is crucial for cancer transformation. RUNX2 can interact with cell cycle regulators: cyclin-dependent kinases, pRB and p21Cip1 proteins, as well as the master regulator of the cell cycle, the p53 tumor suppressor. RUNX2 is involved in many signaling pathways, including those important for estrogen signaling, which, in turn, are significant for breast carcinogenesis. RUNX2 can promote breast cancer development through Wnt and Tgfβ signaling pathways, especially in estrogen receptor (ER)-negative cases. ERα interacts directly with RUNX2 and regulates its activity. Moreover, the ERα gene has a RUNX2 binding site within its promoter. RUNX2 stimulates the expression of aromatase, an estrogen producing enzyme, increasing the level of estrogens, which in turn stimulate cell proliferation and replication errors, which can be turned into carcinogenic mutations. Exploring the role of RUNX2 in the pathogenesis of breast cancer can lead to revealing new therapeutic targets.
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Affiliation(s)
- Daniel Wysokinski
- Department of Molecular Genetics, University of Lodz, Pomorska 141/143, 90-236 Lodz, Poland.
| | - Janusz Blasiak
- Department of Molecular Genetics, University of Lodz, Pomorska 141/143, 90-236 Lodz, Poland.
| | - Elzbieta Pawlowska
- Department of Orthodontics, Medical University of Lodz, Pomorska 251, 92-216 Lodz, Poland.
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39
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Kobayashi M, Chen S, Gao R, Bai Y, Zhang ZY, Liu Y. Phosphatase of regenerating liver in hematopoietic stem cells and hematological malignancies. Cell Cycle 2015; 13:2827-35. [PMID: 25486470 DOI: 10.4161/15384101.2014.954448] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023] Open
Abstract
The phosphatases of regenerating liver (PRLs), consisting PRL1, PRL2 and PRL3, are dual-specificity protein phosphatases that have been implicated as biomarkers and therapeutic targets in several solid tumors. However, their roles in hematological malignancies are largely unknown. Recent findings demonstrate that PRL2 is important for hematopoietic stem cell self-renewal and proliferation. In addition, both PRL2 and PRL3 are highly expressed in some hematological malignancies, including acute myeloid leukemia (AML), chronic myeloid leukemia (CML), multiple myeloma (MM) and acute lymphoblastic leukemia (ALL). Moreover, PRL deficiency impairs the proliferation and survival of leukemia cells through regulating oncogenic signaling pathways. While PRLs are potential novel therapeutic targets in hematological malignancies, their exact biological function and cellular substrates remain unclear. This review will discuss how PRLs regulate hematopoietic stem cell behavior, what signaling pathways are regulated by PRLs, and how to target PRLs in hematological malignancies. An improved understanding of how PRLs function and how they are regulated may facilitate the development of PRL inhibitors that are effective in cancer treatment.
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Affiliation(s)
- Michihiro Kobayashi
- a Department of Pediatrics, Herman B Wells Center for Pediatric Research; Department of Biochemistry and Molecular Biology , Indiana University School of Medicine ; Indianapolis , IN USA
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40
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Wysokinski D, Pawlowska E, Blasiak J. RUNX2: A Master Bone Growth Regulator That May Be Involved in the DNA Damage Response. DNA Cell Biol 2015; 34:305-15. [DOI: 10.1089/dna.2014.2688] [Citation(s) in RCA: 31] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023] Open
Affiliation(s)
| | | | - Janusz Blasiak
- Department of Molecular Genetics, University of Lodz, Lodz, Poland
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41
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Buchner M, Park E, Geng H, Klemm L, Flach J, Passegué E, Schjerven H, Melnick A, Paietta E, Kopanja D, Raychaudhuri P, Müschen M. Identification of FOXM1 as a therapeutic target in B-cell lineage acute lymphoblastic leukaemia. Nat Commun 2015; 6:6471. [PMID: 25753524 PMCID: PMC4366523 DOI: 10.1038/ncomms7471] [Citation(s) in RCA: 35] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/05/2014] [Accepted: 01/30/2015] [Indexed: 01/19/2023] Open
Abstract
Despite recent advances in the cure rate of acute lymphoblastic leukaemia (ALL), the prognosis for patients with relapsed ALL remains poor. Here we identify FOXM1 as a candidate responsible for an aggressive clinical course. We show that FOXM1 levels peak at the pre-B-cell receptor checkpoint but are dispensable for normal B-cell development. Compared with normal B-cell populations, FOXM1 levels are 2- to 60-fold higher in ALL cells and are predictive of poor outcome in ALL patients. FOXM1 is negatively regulated by FOXO3A, supports cell survival, drug resistance, colony formation and proliferation in vitro, and promotes leukemogenesis in vivo. Two complementary approaches of pharmacological FOXM1 inhibition-(i) FOXM1 transcriptional inactivation using the thiazole antibiotic thiostrepton and (ii) an FOXM1 inhibiting ARF-derived peptide-recapitulate the findings of genetic FOXM1 deletion. Taken together, our data identify FOXM1 as a novel therapeutic target, and demonstrate feasibility of FOXM1 inhibition in ALL.
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Affiliation(s)
- Maike Buchner
- Department of Laboratory Medicine, University of California San Francisco, San Francisco, California 94143, USA
| | - Eugene Park
- Department of Laboratory Medicine, University of California San Francisco, San Francisco, California 94143, USA
- Department of Haematology, University of Cambridge, Cambridge CB2 OAH, UK
| | - Huimin Geng
- Department of Laboratory Medicine, University of California San Francisco, San Francisco, California 94143, USA
| | - Lars Klemm
- Department of Laboratory Medicine, University of California San Francisco, San Francisco, California 94143, USA
| | - Johanna Flach
- The Eli and Edythe Broad Center for Regenerative Medicine and Stem Cell Research, Department of Medicine, Hem/Onc Division, University of California San Francisco, San Francisco, California 94143, USA
| | - Emmanuelle Passegué
- The Eli and Edythe Broad Center for Regenerative Medicine and Stem Cell Research, Department of Medicine, Hem/Onc Division, University of California San Francisco, San Francisco, California 94143, USA
| | - Hilde Schjerven
- Department of Laboratory Medicine, University of California San Francisco, San Francisco, California 94143, USA
| | - Ari Melnick
- Division of Hematology and Oncology, Weill Cornell Medical College, New York, New York 10021, USA
| | - Elisabeth Paietta
- Montefiore Medical Center, Albert Einstein College of Medicine, Bronx, New York 10466, USA
| | - Dragana Kopanja
- Department of Biochemistry and Molecular Genetics, University of Illinois at Chicago, Chicago, Illinois 60607, USA
| | - Pradip Raychaudhuri
- Department of Biochemistry and Molecular Genetics, University of Illinois at Chicago, Chicago, Illinois 60607, USA
| | - Markus Müschen
- Department of Laboratory Medicine, University of California San Francisco, San Francisco, California 94143, USA
- Department of Haematology, University of Cambridge, Cambridge CB2 OAH, UK
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Bae J, Samur M, Munshi A, Hideshima T, Keskin D, Kimmelman A, Lee AH, Dranoff G, Anderson KC, Munshi NC. Heteroclitic XBP1 peptides evoke tumor-specific memory cytotoxic T lymphocytes against breast cancer, colon cancer, and pancreatic cancer cells. Oncoimmunology 2014; 3:e970914. [PMID: 25941601 DOI: 10.4161/21624011.2014.970914] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/16/2014] [Accepted: 09/25/2014] [Indexed: 11/19/2022] Open
Abstract
XBP1 is a critical transcriptional activator of the unfolded protein response (UPR), which increases tumor cell survival under prolonged endoplasmic reticulum (ER) stress and hypoxic conditions.This study was designed to evaluate the immunogenicity of heteroclitic XBP1 unspliced (US)184-192 (YISPWILAV) and heteroclictic XBP1 spliced (SP)367-375 (YLFPQLISV) HLA-A2 peptides, and to characterize the specific activities of XBP1 peptides-specific cytotoxic T lymphocytes (XBP1-CTL) against breast cancer, colon cancer, and pancreatic cancer cells.The XBP1-CTL had upregulated expression of critical T cell markers and displayed HLA-A2-restricted and antigen-specific activities against breast cancer, colon cancer and pancreatic cancer cells. XBP1-CTL were enriched withCD45RO+ memory CTL, which showed high expression of critical T cell markers (CD28, ICOS, CD69, CD40L), cell proliferation and antitumor activities as compared to CD45RO- non-memory CTL. The effector memory (EM: CD45RO+CCR7-) subset had the highest level of cell proliferation while the central memory (CM: CD45RO+CCR7+) subset demonstrated enhanced functional activities (CD107a degranulation, IFNγ/IL-2 production) upon recognition of the respective tumor cells. Furthermore, both the EM and CM XBP1-CTL subsets expressed high levels of Th1 transcription regulators Tbet and Eomes. The highest frequencies of IFNγ or granzyme B producing cells were detected within CM XBP1-CTL subset that were either Tbet+ or Eomes+ in responding to the tumor cells.These results demonstrate the immunotherapeutic potential of a cocktail of immunogenic HLA-A2 specific heteroclitic XBP1 US184-192 and heteroclictic XBP1 SP367-375 peptides to induce CD3+CD8+ CTL enriched for CM and EM cells with specific antitumor activities against a variety of solid tumors.
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Affiliation(s)
- Jooeun Bae
- Dana-Farber Cancer Institute ; Boston, MA USA ; Harvard Medical School ; Boston, MA USA
| | - Mehmet Samur
- Dana-Farber Cancer Institute ; Boston, MA USA ; Harvard Medical School ; Boston, MA USA
| | - Aditya Munshi
- Dana-Farber Cancer Institute ; Boston, MA USA ; Harvard Medical School ; Boston, MA USA
| | - Teru Hideshima
- Dana-Farber Cancer Institute ; Boston, MA USA ; Harvard Medical School ; Boston, MA USA
| | - Derin Keskin
- Dana-Farber Cancer Institute ; Boston, MA USA ; Harvard Medical School ; Boston, MA USA
| | - Alec Kimmelman
- Dana-Farber Cancer Institute ; Boston, MA USA ; Harvard Medical School ; Boston, MA USA
| | - Ann-Hwee Lee
- Weill Cornell Medical College ; New York, NY USA
| | - Glen Dranoff
- Dana-Farber Cancer Institute ; Boston, MA USA ; Harvard Medical School ; Boston, MA USA
| | - Kenneth C Anderson
- Dana-Farber Cancer Institute ; Boston, MA USA ; Harvard Medical School ; Boston, MA USA
| | - Nikhil C Munshi
- Dana-Farber Cancer Institute ; Boston, MA USA ; Harvard Medical School ; Boston, MA USA ; VA Boston Healthcare System ; Boston, MA USA
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Vitanza NA, Zaky W, Blum R, Meyer JA, Wang J, Bhatla T, Morrison DJ, Raetz EA, Carroll WL. Ikaros deletions in BCR-ABL-negative childhood acute lymphoblastic leukemia are associated with a distinct gene expression signature but do not result in intrinsic chemoresistance. Pediatr Blood Cancer 2014; 61:1779-85. [PMID: 24976218 PMCID: PMC4217284 DOI: 10.1002/pbc.25119] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/08/2014] [Accepted: 05/07/2014] [Indexed: 12/16/2022]
Abstract
BACKGROUND Ikaros, the product of IKZF1, is a regulator of lymphoid development and polymorphisms in the gene have been associated with the acute lymphoblastic leukemia (ALL). Additionally, IKZF1 deletions and mutations identify high-risk biological subsets of childhood ALL [Georgopoulos et al. Cell 1995;83(2):289-299; Mullighan et al. N Engl J Md 2009;360(5):470-480]. PROCEDURES To discover the underlying pathways modulated by Ikaros we performed gene expression and gene ontology analysis in IKZF1 deleted primary B-ALL pediatric patient samples. To validate downstream targets we performed qPCR on individual patient samples. We also created IKZF1 knockdown B-ALL cell lines with over 50% reduction of Ikaros, mimicking haplosufficient Ikaros deletions, and again performed qPCR to investigate the downstream targets. Finally, to understand the association of Ikaros deletion with a poor prognosis we challenged our IKZF1 knockdown cell lines with chemotherapy and compared responses to IKZF1 wild-type controls. RESULTS We report a specific gene expression signature of 735 up-regulated and 473 down-regulated genes in IKZF1 deleted primary B-ALL pediatric patient samples. Gene ontology studies revealed an up-regulation of genes associated with cell adhesion, cytoskeletal regulation, and motility in IKZF deleted patient samples. Validated up-regulated target genes in IKZF1 deleted patient samples included CTNND1 and PVRL2 (P = 0.0003 and P = 0.001), and RAB3IP and SPIB (P = 0.005 and P = 0.032) were down-regulated. In further studies in IKZF1 knockdown cell lines, apoptosis assays showed no significant chemoresistance. CONCLUSION IKZF1 knockdown alone does not impart intrinsic chemotherapy resistance suggesting that the association with a poor prognosis may be due to additional lesions, microenvironmental interactions with the bone marrow niche, or other factors.
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Affiliation(s)
- Nicholas A. Vitanza
- Department of Pediatric Hematology/Oncology, Laura and Isaac Perlmutter Cancer Center at New York University Langone Medical Center, New York, NY
| | - Wafik Zaky
- Department of Pediatric Patient Care, University of Texas MD Anderson Cancer Center, Houston, TX
| | - Roy Blum
- Department of Pathology, New York University School of Medicine, New York, NY
| | - Julia A. Meyer
- Department of Pathology, New York University School of Medicine, New York, NY
| | - Jinhua Wang
- Department of Pediatric Hematology/Oncology, Laura and Isaac Perlmutter Cancer Center at New York University Langone Medical Center, New York, NY
| | - Teena Bhatla
- Department of Pediatric Hematology/Oncology, Laura and Isaac Perlmutter Cancer Center at New York University Langone Medical Center, New York, NY
| | - Debra J. Morrison
- Department of Pediatric Hematology/Oncology, Laura and Isaac Perlmutter Cancer Center at New York University Langone Medical Center, New York, NY
| | | | - William L. Carroll
- Department of Pediatric Hematology/Oncology, Laura and Isaac Perlmutter Cancer Center at New York University Langone Medical Center, New York, NY,Address for Correspondence: William L. Carroll, MD NYU Cancer Institute Smilow 1201 522 First Avenue New York NY 10016 Phone: 212-263-3276 Fax: 212-263-9190
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de França Azevedo I, da Silva Júnior RMP, de Vasconcelos AVM, das Neves WB, de Barros Correia Melo FC, Melo RAM. Frequency of p190 and p210 BCR-ABL rearrangements and survival in Brazilian adult patients with acute lymphoblastic leukemia. Rev Bras Hematol Hemoter 2014; 36:351-5. [PMID: 25305168 PMCID: PMC4318373 DOI: 10.1016/j.bjhh.2014.07.016] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/05/2013] [Accepted: 06/05/2014] [Indexed: 11/21/2022] Open
Abstract
Objective This study investigated the occurrence of the p190 and p210 breakpoint cluster region-Abelson (BCR-ABL) rearrangements in adults with acute lymphoblastic leukemia and possible associations with clinical and laboratory characteristics and survival. Methods Forty-one over 18-year-old patients with acute lymphoblastic leukemia of both genders followed-up between January 2008 and May 2012 were included in this study. Clinical and laboratory data were obtained from the medical charts of the patients. Reverse transcription polymerase chain reaction (RT-PCR) using specific primers was employed to identify molecular rearrangements. Results At diagnosis, the median age was 33 years, and there was a predominance of males (61%). The most common immunophenotype was B lineage (76%). BCR-ABL rearrangements was detected in 14 (34%) patients with the following distribution: p190 (28%), p210 (50%) and double positive (22%). Overall survival of patients with a mean/median of 331/246 days of follow up was 39%, respectively, negative BCR-ABL (44%) and positive BCR-ABL (28%). Conclusion These results confirm the high frequency of BCR-ABL rearrangements and the low survival rate of adult Brazilian patients with acute lymphoblastic leukemia.
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Kharabi Masouleh B, Geng H, Hurtz C, Chan LN, Logan AC, Chang MS, Huang C, Swaminathan S, Sun H, Paietta E, Melnick AM, Koeffler P, Müschen M. Mechanistic rationale for targeting the unfolded protein response in pre-B acute lymphoblastic leukemia. Proc Natl Acad Sci U S A 2014; 111:E2219-28. [PMID: 24821775 PMCID: PMC4040579 DOI: 10.1073/pnas.1400958111] [Citation(s) in RCA: 69] [Impact Index Per Article: 6.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/19/2023] Open
Abstract
The unfolded protein response (UPR) pathway, a stress-induced signaling cascade emanating from the endoplasmic reticulum (ER), regulates the expression and activity of molecules including BiP (HSPA5), IRE1 (ERN1), Blimp-1 (PRDM1), and X-box binding protein 1 (XBP1). These molecules are required for terminal differentiation of B cells into plasma cells and expressed at high levels in plasma cell-derived multiple myeloma. Although these molecules have no known role at early stages of B-cell development, here we show that their expression transiently peaks at the pre-B-cell receptor checkpoint. Inducible, Cre-mediated deletion of Hspa5, Prdm1, and Xbp1 consistently induces cellular stress and cell death in normal pre-B cells and in pre-B-cell acute lymphoblastic leukemia (ALL) driven by BCR-ABL1- and NRAS(G12D) oncogenes. Mechanistically, expression and activity of the UPR downstream effector XBP1 is regulated positively by STAT5 and negatively by the B-cell-specific transcriptional repressors BACH2 and BCL6. In two clinical trials for children and adults with ALL, high XBP1 mRNA levels at the time of diagnosis predicted poor outcome. A small molecule inhibitor of ERN1-mediated XBP1 activation induced selective cell death of patient-derived pre-B ALL cells in vitro and significantly prolonged survival of transplant recipient mice in vivo. Collectively, these studies reveal that pre-B ALL cells are uniquely vulnerable to ER stress and identify the UPR pathway and its downstream effector XBP1 as novel therapeutic targets to overcome drug resistance in pre-B ALL.
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Affiliation(s)
- Behzad Kharabi Masouleh
- Department of Laboratory Medicine andDepartment of Oncology, Hematology and Stem Cell Transplantation, Rheinisch-Westfaelische Technische Hochschule Aachen University Medical School, 52070 Aachen, Germany
| | | | | | | | - Aaron C Logan
- Division of Hematology-Oncology, University of California, San Francisco, CA 94143
| | - Mi Sook Chang
- Children's Hospital Los Angeles, Los Angeles, CA 90027
| | - Chuanxin Huang
- Departments of Medicine andPharmacology, Weill Cornell Medical College, New York, NY 10065
| | | | - Haibo Sun
- Cedars Sinai Medical Center, Los Angeles, CA 90048; and
| | - Elisabeth Paietta
- Department of Medicine, Albert Einstein College of Medicine, Bronx, NY 10466
| | - Ari M Melnick
- Departments of Medicine andPharmacology, Weill Cornell Medical College, New York, NY 10065
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Qu S, Liu B, Guo X, Shi H, Zhou M, Li L, Yang S, Tong X, Wang H. Independent oncogenic and therapeutic significance of phosphatase PRL-3 in FLT3-ITD-negative acute myeloid leukemia. Cancer 2014; 120:2130-41. [PMID: 24737397 PMCID: PMC4231236 DOI: 10.1002/cncr.28668] [Citation(s) in RCA: 29] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/03/2013] [Revised: 11/21/2013] [Accepted: 01/08/2014] [Indexed: 01/12/2023]
Abstract
BACKGROUND Internal tandem duplication of FMS-like tyrosine kinase (FLT3-ITD) is well known to be involved in acute myeloid leukemia (AML) progression, but FLT3-ITD-negative AML cases account for 70% to 80% of AML, and the mechanisms underlying their pathology remain unclear. This study identifies protein tyrosine phophatase PRL-3 as a key mediator of FLT3-ITD-negative AML. METHODS A total of 112 FLT3-ITD-negative AML patients were sampled between 2010 and 2013, and the occurrence of PRL-3 hyperexpression in FLT3-ITD-negative AML was evaluated by multivariate probit regression analysis. Overexpression or depletion of endogenous PRL-3 expression with the specific small interfering RNAs was performed to investigate the role of PRL-3 in AML progression. Xenograft models were also used to confirm the oncogenic role of PRL-3. RESULTS Compared to healthy donors, PRL-3 is upregulated more than 3-fold in 40.2% of FLT3-ITD-negative AML patients. PRL-3 expression level is adversely correlated to the overall survival of the AML patients, and the AML relapses accompany with re-upregulation of PRL-3. Mechanistically, aberrant PRL-3 expression promoted cell cycle progression and enhanced the antiapoptotic machinery of AML cells to drug cytotoxicity through downregulation of p21 and upregulation of Cyclin D1 and CDK2 and activation of STAT5 and AKT. Depletion of endogenous PRL-3 sensitizes AML cells to therapeutic drugs, concomitant with apoptosis by upregulation of cleaved PARP (poly ADP ribose polymerase) and apoptosis-related caspases. Xenograft assays further confirmed PRL-3's oncogenic role in leukemogenesis. CONCLUSIONS Our results demonstrated that PRL-3 is a novel independent crucial player in both FLT3-ITD-positive and FLT3-ITD-negative AML and could be a potential therapeutic target.
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Affiliation(s)
- Shuang Qu
- Department of Hematology, the First Affiliated Hospital, Sun Yat-sen University, Guangzhou, China; Department of Biochemistry, Zhongshan School of Medicine, Sun Yat-sen University, Guangzhou, China; Department of Hematology, Fujian Provincial Hospital, Fujian Medical University, Fuzhou, China
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47
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Maino E, Sancetta R, Viero P, Imbergamo S, Scattolin AM, Vespignani M, Bassan R. Current and future management of Ph/BCR-ABL positive ALL. Expert Rev Anticancer Ther 2014; 14:723-40. [PMID: 24611626 DOI: 10.1586/14737140.2014.895669] [Citation(s) in RCA: 38] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
Following the introduction of targeted therapy with tyrosine kinase inhibitors (TKI) at the beginning of the past decade, the outcome of patients with Philadelphia-chromosome positive acute lymphoblastic leukemia (Ph+ ALL) has dramatically improved. Presently, the use of refined programs with first/second generation TKI's and chemotherapy together with allogeneic stem cell transplantation allow up to 50% of all patients to be cured. Further progress is expected with the new TKI ponatinib, overcoming resistance caused by T315I point mutation, other targeted therapies, autologous transplantation in molecularly negative patients, therapeutic monoclonal antibodies like inotuzumab ozogamicin and blinatumomab, and chimeric antigen receptor-modified T cells. Ph+ ALL could become curable in the near future even without allogeneic stem cell transplantation, minimizing the risk of therapy-related death and improving greatly the quality of patients' life.
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Affiliation(s)
- Elena Maino
- Hematology/Bone Marrow Transplantation Unit, Ospedale dell'Angelo and Ospedale SS. Giovanni e Paolo, Via Paccagnella 11, 30174 Venezia-Mestre, Italy
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48
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Selective regulation of lymphopoiesis and leukemogenesis by individual zinc fingers of Ikaros. Nat Immunol 2013; 14:1073-83. [PMID: 24013668 PMCID: PMC3800053 DOI: 10.1038/ni.2707] [Citation(s) in RCA: 82] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Abstract] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/09/2013] [Accepted: 08/14/2013] [Indexed: 11/08/2022]
Abstract
C2H2 zinc fingers are found in several transcriptional regulators in the immune system. However, these proteins usually contain more fingers than are needed for stable DNA binding, suggesting that different fingers regulate different genes and functions. Mice lacking finger 1 or finger 4 of Ikaros exhibited distinct subsets of the phenotypes of Ikaros-null mice. Most notably, the two fingers controlled different stages of lymphopoiesis and finger 4 was selectively required for tumor suppression. The distinct phenotypes suggest that only a small number of Ikaros target genes are critical for each of its biological functions. Subdivision of phenotypes and targets by mutagenesis of individual fingers will facilitate efforts to understand how members of this prevalent family regulate development, immunity and disease.
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49
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Singh MM, Howard A, Irwin ME, Gao Y, Lu X, Multani A, Chandra J. Expression and activity of Fyn mediate proliferation and blastic features of chronic myelogenous leukemia. PLoS One 2012; 7:e51611. [PMID: 23284724 PMCID: PMC3524192 DOI: 10.1371/journal.pone.0051611] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/22/2012] [Accepted: 11/01/2012] [Indexed: 12/30/2022] Open
Abstract
The BCR-ABL1 oncogene is a tyrosine kinase that activates many signaling pathways, resulting in the induction of chronic myeloid leukemia (CML). Kinase inhibitors, such as imatinib, have been developed for the treatment of CML; however, the terminal, blast crisis phase of the disease remains a clinical challenge. Blast crisis CML is difficult to treat due to resistance to tyrosine kinase inhibitors, increased genomic instability and acquired secondary mutations. Our recent studies uncovered a role for Fyn in promoting BCR-ABL1 mediated cell growth and sensitivity to imatinib. Here we demonstrate that Fyn contributes to BCR-ABL1 induced genomic instability, a feature of blast crisis CML. Bone marrow cells and mouse embryonic fibroblasts derived from Fyn knockout mice transduced with BCR-ABL1 display slowed growth and clonogenic potential as compared to Fyn wild-type BCR-ABL1 expressing counterparts. K562 cells overexpressing constitutively active Fyn kinase were larger in size and displayed an accumulation of genomic abnormalities such as chromosomal aberrations and polyploidy. Importantly, loss of Fyn protected mouse embryonic fibroblast cells from increased number of chromosomal aberrations and fragments induced by BCR-ABL1. Together, these results reveal a novel role for Fyn in regulating events required for genomic maintenance and suggest that Fyn kinase activity plays a role in the progression of CML to blast crisis.
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MESH Headings
- Animals
- Apoptosis
- Blast Crisis/genetics
- Blast Crisis/metabolism
- Blast Crisis/pathology
- Blotting, Western
- Cell Cycle
- Cell Differentiation
- Cell Proliferation
- Cell Size
- Cells, Cultured
- Embryo, Mammalian/cytology
- Embryo, Mammalian/metabolism
- Fibroblasts/cytology
- Fibroblasts/metabolism
- Fusion Proteins, bcr-abl/genetics
- Fusion Proteins, bcr-abl/metabolism
- Genomic Instability
- Humans
- Immunoenzyme Techniques
- Immunoprecipitation
- K562 Cells
- Leukemia, Myelogenous, Chronic, BCR-ABL Positive/genetics
- Leukemia, Myelogenous, Chronic, BCR-ABL Positive/metabolism
- Leukemia, Myelogenous, Chronic, BCR-ABL Positive/pathology
- Mice
- Mice, Knockout
- Proto-Oncogene Proteins c-fyn/genetics
- Proto-Oncogene Proteins c-fyn/metabolism
- Proto-Oncogene Proteins c-fyn/physiology
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Affiliation(s)
- Melissa M. Singh
- Department of Pediatrics Research, The University of Texas M.D. Anderson Cancer Center, Houston, Texas, United States of America
| | - Adrienne Howard
- Department of Pediatrics Research, The University of Texas M.D. Anderson Cancer Center, Houston, Texas, United States of America
- Graduate School of Biomedical Sciences, The University of Texas at Houston Health Science Center, Houston, Texas, United States of America
| | - Mary E. Irwin
- Department of Pediatrics Research, The University of Texas M.D. Anderson Cancer Center, Houston, Texas, United States of America
| | - Yin Gao
- Department of Pediatrics Research, The University of Texas M.D. Anderson Cancer Center, Houston, Texas, United States of America
| | - Xiaolin Lu
- Department of Pediatrics Research, The University of Texas M.D. Anderson Cancer Center, Houston, Texas, United States of America
| | - Asha Multani
- Molecular Cytogenetics Core Facility, The University of Texas M.D. Anderson Cancer Center, Houston, Texas, United States of America
| | - Joya Chandra
- Department of Pediatrics Research, The University of Texas M.D. Anderson Cancer Center, Houston, Texas, United States of America
- Graduate School of Biomedical Sciences, The University of Texas at Houston Health Science Center, Houston, Texas, United States of America
- * E-mail:
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50
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Geng H, Brennan S, Milne TA, Chen WY, Li Y, Hurtz C, Kweon SM, Zickl L, Shojaee S, Neuberg D, Huang C, Biswas D, Xin Y, Racevskis J, Ketterling RP, Luger SM, Lazarus H, Tallman MS, Rowe JM, Litzow MR, Guzman ML, Allis CD, Roeder RG, Müschen M, Paietta E, Elemento O, Melnick AM. Integrative epigenomic analysis identifies biomarkers and therapeutic targets in adult B-acute lymphoblastic leukemia. Cancer Discov 2012; 2:1004-23. [PMID: 23107779 DOI: 10.1158/2159-8290.cd-12-0208] [Citation(s) in RCA: 72] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
UNLABELLED Genetic lesions such as BCR-ABL1, E2A-PBX1, and MLL rearrangements (MLLr) are associated with unfavorable outcomes in adult B-cell precursor acute lymphoblastic leukemia (B-ALL). Leukemia oncoproteins may directly or indirectly disrupt cytosine methylation patterning to mediate the malignant phenotype. We postulated that DNA methylation signatures in these aggressive B-ALLs would point toward disease mechanisms and useful biomarkers and therapeutic targets. We therefore conducted DNA methylation and gene expression profiling on a cohort of 215 adult patients with B-ALL enrolled in a single phase III clinical trial (ECOG E2993) and normal control B cells. In BCR-ABL1-positive B-ALLs, aberrant cytosine methylation patterning centered around a cytokine network defined by hypomethylation and overexpression of IL2RA(CD25). The E2993 trial clinical data showed that CD25 expression was strongly associated with a poor outcome in patients with ALL regardless of BCR-ABL1 status, suggesting CD25 as a novel prognostic biomarker for risk stratification in B-ALLs. In E2A-PBX1-positive B-ALLs, aberrant DNA methylation patterning was strongly associated with direct fusion protein binding as shown by the E2A-PBX1 chromatin immunoprecipitation (ChIP) sequencing (ChIP-seq), suggesting that E2A-PBX1 fusion protein directly remodels the epigenome to impose an aggressive B-ALL phenotype. MLLr B-ALL featured prominent cytosine hypomethylation, which was linked with MLL fusion protein binding, H3K79 dimethylation, and transcriptional upregulation, affecting a set of known and newly identified MLL fusion direct targets with oncogenic activity such as FLT3 and BCL6. Notably, BCL6 blockade or loss of function suppressed proliferation and survival of MLLr leukemia cells, suggesting BCL6-targeted therapy as a new therapeutic strategy for MLLr B-ALLs. SIGNIFICANCE We conducted the first integrative epigenomic study in adult B-ALLs, as a correlative study to the ECOG E2993 phase III clinical trial. This study links for the first time the direct actions of oncogenic fusion proteins with disruption of epigenetic regulation mediated by cytosine methylation. We identify a novel clinically actionable biomarker in B-ALLs: IL2RA (CD25), which is linked with BCR-ABL1 and an inflammatory signaling network associated with chemotherapy resistance. We show that BCL6 is a novel MLL fusion protein target that is required to maintain the proliferation and survival of primary human adult MLLr cells and provide the basis for a clinical trial with BCL6 inhibitors for patients with MLLr.
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Affiliation(s)
- Huimin Geng
- Department of Medicine/Hematology-Oncology Division, Weill Medical College of Cornell University, New York, NY 10065, USA
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